home · On a note · Tool types of hand tools and applications. Criteria for classification of cutting tools. ■ names of instruments used in everyday life

Tool types of hand tools and applications. Criteria for classification of cutting tools. ■ names of instruments used in everyday life

Rice. 1.8. Safety glasses are the most essential accessory in any tool kit.


Rice. 1.9. Combination wrench. Both wrench heads are designed for the same bolt head size. Please note that the horn head is turned at an angle to the wrench handle to make it easier to work in tight spaces

Rice. 1.10. Three open-end wrenches different quality. The cheapest one (left) is made of weak steel and is thicker and rougher than a standard key (center). The key is shown on the right professional quality(and corresponding price)


Rice. 1.eleven. A box spanner with a split head having a hexagonal jaw. Also known as "plumbing wrench","locksmith's wrench" or "pipe wrench". The jaw of this wrench covers most of the hexagonal edges pipeline fittings and allows you to grip the part as tightly as possible without damaging it

■ LIST OF BASIC TOOLS

Hand tools are used to tighten fasteners (bolts, nuts, and screws). Below is a list hand tools, which no auto mechanic can do without. A specialized tool is not included in this list (Fig. 1.8-1.37).

Tool box

Protective glasses

1/4" square socket set

1/4" square socket driver with ratchet mechanism 2" extension for 1/4" square socket sockets

Six-inch socket extension with 1/4-inch square drive

Drive with 1/4-inch square connection

3/8" square socket set

Torx socket set with 3/8-inch square connection

Socket for 13/16" plug, with 3/8" square connection

Socket for 5/8" plug, with 3/8" square connection

3/8" square drive wrench equipped with ratchet mechanism

1.5" Socket Extension with 3/8" Square Connection

Three-inch socket extension with 3/8-inch square drive Six-inch socket extension with 3/8-inch square drive

Eighteen-inch socket extension with 3/8-inch square drive

Universal socket link with 3/8" square drive

1/2" square socket set

1/2" square drive wrench equipped with ratchet mechanism

Long Length Breakaway Wrench with 1/2" Square Connection

Five-inch socket extension with 1/2-inch square drive

Ten inch socket extension with 1/2 inch square drive

Adapter from 3/8-inch to 1/4-inch connecting square

Adapter from 1/2-inch to 3/8-inch connecting square

Adapter from 3/8-inch to 1/2-inch connecting square

Set of combination wrenches with seat sizes from 3/8 inch to 1 inch Set of combination wrenches with seat sizes from 10 mm to 19 mm

Set of wrenches for fasteners with internal hexagon, with seat sizes from 1/16 inch to 1/4 inch

A set of wrenches for fastening with an internal hexagon, with a seat size from 2 mm to 12 mm

Socket head for fasteners with internal hexagon, with mounting size 3/8-inch

13mm/14mm box spanner (split hex head)

15mm / 17mm Box Wrench (Split Hex Head) ^6" / ^inch Box Wrench (Split Hex Head)

Inch / Y> inch box spanner (with a split hex head)

Inch/%, inch box spanner (split hex head)

Side cutters

Needle nose pliers

Adjustable wrench (Swedish)

Clamp pliers (with fixation)

Expander for mounting/dismounting retaining rings

Electrician's stripping or crimping pliers

Ball hammer

Hammer with rubber head

Impact hammer (non-elastic)

Set of five flat blade screwdrivers

Set of four Phillips Phillips screwdrivers

Screwdriver Togh No. 15

Screwdriver Togh No. 20

Houndstooth fork set (inch)

Houndstooth Fork Set (Metric)

Personal file Kerner

Punches ( different sizes) Chisel

Multi-blade folding knife

Spool Maintenance Tool

Tester for checking cooling systems

Key for removing filters ( large sizes)

Key for removing filters (smaller sizes)

Electrical tester

Gauge gauge for measuring gaps

Mount

Retractable blade knife Magnetic feeler gauge Torque wrench Micrometer for 0-1" range Micrometer for 1-2" range

Rice. 1.12. Ring head spanner. Recommended for loosening and tightening bolts and nuts when a socket wrench cannot be used. The heads on both sides of the key have a different number. This type of wrench is preferable to an open-end wrench because it covers the bolt head around the perimeter, and not just on both sides, like an open-end wrench.

Rice. 1.13. An open-end wrench is a tool general purpose. The heads on both sides of the key have different seat sizes (numbers). An open-end wrench should not be used to tighten or loosen a tightly tightened threaded connection due to the danger of it being torn off the head of a bolt or nut

Rice. 1.14. Flat blade screwdrivers [left] vary in blade length and thickness. The thickness of the tip should correspond to the width of the slot on the screw head. Philips head screwdrivers (right) vary in length and size of the “patch” at the tip of the tip. The smallest “patch” is on the Philips screwdriver No. 1, on the Phillips screwdriver No. 2 (it is shown in the photo) - the most common - it is larger. The Philips No. 3 screwdriver has the bluntest tip, designed to work with the largest screws.

Rice. 1.15. Various mites. Combination pliers (far left) are often confused with plumbing crimpers (second from left)

Rice. 1.16. Commercially available ball hammers (above) vary in head weight (usually stated in ounces). Below is a hammer with a soft (plastic) head. The hammer head should always be softer (have higher ductility) than the material being processed. To avoid damage when machining cast iron or steel engine parts, place a block of wood or similar material between them and a steel-head hammer.

Rice. 1.19. Socket heads - twelve-sided, hexagonal and octagonal.

It is better to use hex sockets because they cover all six faces of the head of a standard bolt or nut, allowing you to apply more force without stripping the faces of the head

Rice. 1.17. Various types of socket wrenches

Rice. 1.20. The hex socket socket fits against all faces of the bolt or nut head. If excessive force is applied, the dowel head can “break” the edges of the bolt or nut head


Rice. 1.18. Various options socket head extensions (extensions). The universal articulated extension, shown in the center (bottom), is convenient for working in hard-to-reach areas

Rice. 1.21. Sockets: standard twelve-sided short [left], articulated (center) and long (right). The last two are hexagonal

Rice. 1.22. Standard files. Never use a file without a handle

Rice. 1.23. A mechanical collet gripper (above) and a telescopic probe with a magnet at the end (below) are indispensable tools if you need to get a small part that has fallen into a place where your fingers cannot reach

Rice. 1.24. Stethoscope - with its help, the mechanic “listens” the engine, looking for the place from which a suspicious noise is coming

Rice. 1.25. Typical sharpening machine. Pay attention to the one installed on it protective screen. But, although the screen provides some eye protection, when working on this or any other machine, be sure to protect your eyes with safety glasses

Rice. 1.26. Hacksaw. The teeth of the hacksaw blade should be oriented away from the saw handle. The thinner the material being cut, the smaller the teeth of the hacksaw blade should be.

Rice. 1.27. Drill (top) with spiral flutes (grooves) and reamer (bottom) with straight cutting edges

Rice. 1.28. Drill cutting edge

Rice. 1.29. Assorted punches (left) and chisel (right)

Rice. 1.30. The head of this chisel is riveted, and this is dangerous. If you hit such a chisel with a hammer, sharp shards of metal may break off and injure you. When you find a tool with a riveted head, grind off the riveted part as shown in this photo. This will avoid the risk of injury (b)

Rice. 1.31. Thread cutting using a hand die

Don't use this tool

A young mechanic who started working in a workshop, arriving at work on the first day, put his toolbox on the workbench. Another mechanic saw that there were several adjustable wrenches in it, along with a full set of high-quality tools, and said: “Take this away from the eyes of your superiors.” The moving jaws of an adjustable wrench often slip along the surface of the head of a bolt or nut, rounding off sharp edges, and it becomes much more difficult to unscrew such a damaged fastener.

Rice. 1.32. Taps - roughing and finishing. Finishing taps are typically used to clean or renew existing threads in parts

Have you had to borrow an instrument several times? So you need to buy it!

Most auto mechanics will not refuse their young colleague’s request to borrow one or another tool. But if you have needed a tool several times already, buy it as soon as possible. Also, when returning a borrowed instrument, make sure it is clean and return it to the person you borrowed it from. By doing so, you will strengthen the trust of your colleagues.

Rice. 1.34. Installing the tap in drilled hole. To obtain the required clearance in the thread, the diameter of the hole must exactly match the size of the tap. A drill of the appropriate diameter is called a drill threaded(The diameter of the thread drill is equal to the outer diameter of the metric thread minus the thread pitch size. For example, for an MB thread (thread pitch 1 mm), the diameter of the thread hole is 5 mm.)


Rice. 1.33. Dies are used for cutting external threads on cylindrical rods, and taps are used for tapping internal thread in the holes

Rice. 1.35. For organized storage small parts convenient inexpensive mesh tray

Rice. 1.36. A good portable one is essential for work. fluorescent lamp. Fluorescent Lamp Doesn't get as hot as an incandescent bulb and won't cause a fire if accidentally splashed with gasoline, unlike unprotected incandescent bulbs used in some emergency flashlights

Technique using grinding paste

Apply a small amount of valve grinding paste to the head of the bolt or screw. It will “grab” the tip of a screwdriver or other tool, preventing it from “breaking” from the fastener. You can buy this paste in tubes at any auto parts store.

Rice. 1.37. To begin with, it is enough to have a set of only the most necessary tools(A). Experienced, highly trained auto mechanics spend thousands of dollars every year on tools like the one in this large (and expensive) toolbox.

It will take very little time

When dismantling an automobile unit, it is best to immediately screw back the removed bolts, manually “reattaching” them to the places from which they were removed. This ensures that when installing the unit back into the car, all fasteners will be in their places. A car often uses fasteners of the same diameter, but different lengths. Taking a few seconds to get the nuts and bolts back in place when dismantling the assembly will save a lot of time when putting it back together. By following this rule, you, in addition to guaranteeing that in the right places If you need proper fasteners, ensure their safety - the nuts and bolts will not fall apart or get lost. How much time have you already wasted looking for a bolt or nut that has disappeared into nowhere?

■ NAMES OF INSTRUMENTS USED IN COURSE

Techniques to designate a particular instrument often do not use technical terms, but an everyday or slang name. As a result, newcomers sometimes find themselves in awkward situation. Below, the table shows the technical names of a number of tools, as well as their common and slang names.

■ SAFETY RULES WHEN WORKING WITH HAND TOOLS

When working with hand tools, strictly follow following rules safety precautions:

Always turn the wrench towards yourself only and not from yourself.

Keep hand tools clean. This will protect it from rust and provide a more reliable, tight adhesion to the part.

To loosen a tightly tightened bolt or nut, use only a hex-head socket wrench or a ring-head socket wrench.

Never use a piece of pipe or any other tool to increase the torque of a wrench. If more force is required, use a stronger tool or penetrating oil and/or heat when loosening the rusted threaded joint. (If a bolt or nut was heated to unscrew, be sure to replace it with a new one).

Always use only the tool that is intended for the operation. If a special tool is needed, then use only it - never use an auxiliary tool that is not intended for the operation instead of a standard one.

Do not allow the tool to overheat. Heat causes a decrease in strength (“tempering”) of the metal tool.

Never hit a wrench or socket tool handle with a hammer. This can only be done if you are using a special hammer-type wrench designed to work with a hammer.

Do not use faulty or worn tools.

  • 2.7. Fire safety
  • 3. Requirements for the placement of production equipment and organization of workplaces
  • 4. Requirements for raw materials, blanks, semi-finished products
  • 5. Requirements for storage and transportation of blanks, semi-finished products, auxiliary materials, finished products, tools and production waste
  • 6. Requirements for production equipment
  • 6.1. General requirements
  • 6.2. Fencing devices
  • 6.3. Safety and interlocking devices
  • 6.4. Controls
  • 6.5. Devices for moving, installing and securing workpieces and tools
  • 6.6. Lubrication, cooling, hydraulic and pneumatic drives, chip removal and transport of the machine
  • 6.7. Devices for removing dust, small chips and harmful emissions
  • 6.8. Service platforms and stairs
  • 6.9. Electrical equipment
  • 6.10. Special requirements for machines of various groups
  • 6.10.1. Lathe group machines
  • 6.10.2. Drilling group machines
  • 6.10.3. Boring group machines
  • 6.10.4. Milling group machines
  • 6.10.5. Planing, slotting and broaching machines
  • 6.10.6. Gear processing machines
  • 6.10.7. Cutting group machines
  • 6.10.8. Abrasive machining machines
  • 6.10.9. Bending, leveling (roll) and profile bending machines
  • 6.10.10. Mechanical presses for cold stamping of metals
  • 6.10.11. Sheet metal shears
  • 6.10.12. Aggregate machines, automatic lines, robotic complexes (rk), flexible production systems (gps), machining centers and CNC machines
  • 6.10.13. Electroerosive machines
  • 6.10.14. Electrochemical machines
  • 6.10.15. Ultrasonic machines
  • 6.19.16. Automatic rotary and rotary-conveyor lines
  • 6.19.17. Stands for testing abrasive and CBN wheels
  • 7. Requirements for hand tools and accessories
  • 8. Requirements for technological processes
  • 8.1. General requirements
  • 8.2. Processing of products made of titanium, magnesium and their alloys
  • 8.3. Processing of products made of beryllium and its alloys
  • 9. Personnel requirements
  • 10. Requirements for the use of personal protective equipment for workers
  • 11. Work and rest modes
  • 12. Responsibility for violation of rules and control over their implementation
  • Appendix 1 Characteristics of some harmful substances
  • Appendix 2
  • Acceptable values ​​of microclimate indicators at workplaces of industrial premises
  • Appendix 3 Lighting standards for workplaces and natural light factors
  • Appendix 4 Provision of special sanitary facilities and devices depending on the groups of production processes
  • Appendix 5
  • Group of chemical factors
  • Factors of the labor process
  • Appendix 7 Categories of premises according to explosion and fire hazard
  • Appendix 8 Standards for primary fire extinguishing agents
  • Appendix 9 Rejection of steel ropes
  • The number of wire breaks over the length of one rope lay step, at which the rope must be rejected
  • Rope rejection standards depending on surface wear or corrosion
  • Appendix 10 Limits of motor field zones along the front, height, depth
  • Appendix 11 Symbols for the protective properties of workwear, safety footwear and hand protection
  • Bibliography
  • Regulatory legal acts of Gosstandart of Russia
  • Regulatory legal acts approved by the State Construction Committee of Russia
  • Regulatory legal acts approved by the Ministry of Fuel and Energy of Russia
  • Regulatory legal acts approved by Gosgortekhnadzor of Russia
  • Regulatory legal acts approved by the Ministry of Health and the State Committee for Sanitary and Epidemiological Surveillance of Russia
  • Content
  • 7. Requirements for hand tools and accessories

    7.1. Hand tools and devices for everyday use must be assigned to workers for individual or team use.

    7.2. Hand tools located in the tool room must be inspected at least once every ten days, as well as immediately before use. The faulty instrument must be removed.

    7.3. Bench hammers must be made in accordance with GOST 2310 from steel grades 50, 40X or U7. The working ends of the hammers must have a hardness of 50.5-57 HRC at 1/5 of the length at both ends.

    The heads of hammers and sledgehammers must have a smooth surface, without chips and gouges, cracks and burrs.

    7.4. The handles of hammers, sledgehammers and other impact tools must be made of dry hardwood hardwood or synthetic materials that ensure the strength and reliability of the nozzle when performing work.

    7.5. The handles (handles) of shovels must be smooth and firmly fixed in the holders.

    7.6. The use of files, scrapers, screwdrivers without handles and bandage rings on them or with poorly secured handles is not allowed.

    7.7. The crowbars and mountings used during work must be smooth, without burrs, cracks or hardening.

    7.8. Chisels, cross-cutters, punches, bits must be made in accordance with GOST 7211, GOST 7212, GOST 7213, GOST 7214 from steel grades U7, U7A, U8 or U8A. Chisels, crosscuts and bits should not have cracks, caps, hairs, knocked down or beveled ends. The cutting edge of chisels and crossbars is hardened to 0.3-0.5 total length and is tempered to a hardness of 53-58 HRC. The working part of the cutting beards, cores, etc. hardened to a length of 15-25 mm to a hardness of 46.5-53 HRC. The back of the instruments must be smooth, without cracks, burrs or hardening. The hardness for a length of 15-25 mm should be in the range of 33.5-41.5 HRC. There should be no damage to the working end.

    Working with a chisel, cross-cutting tool and other similar tools should be done with glasses.

    The work area must be fenced.

    7.9. Hand scissors for cutting metal must comply with GOST 7210.

    Manual lever shears must be securely mounted on special racks, workbenches and equipped with clamps on the upper movable knife, a shock absorber to soften the impact of the knife holder and a counterweight that holds the upper movable knife in a safe position.

    7.10. The shape and dimensions of the wrenches must comply with the requirements of GOST 6424, GOST 2838 and GOST 2839.

    Single-sided wrenches must comply with the requirements of GOST 2841.

    Keys are made of steel not lower than grade 40X, and shortened ones - not lower than grade 40. The hardness of the working surfaces of the keys should be: with jaw sizes up to 36 mm - 41.5-46.5 HRC, more than 41 mm - within 39.5- 46.5 HRC.

    The jaws of the keys must be strictly parallel and not rolled up. The dimensions of the wrench mouth must correspond to the dimensions of the nuts and bolt heads. The dimensions of the wrench mouth should not exceed the dimensions of the nuts and bolts by more than 5%.

    Unscrewing nuts and bolts with large wrenches using metal spacers, as well as lengthening wrenches with pipes and other objects is not allowed (use wrenches with extended handles).

    7.11. The handles of pliers and hand scissors should be smooth, without dents, nicks or burrs. WITH inside there must be a stop to prevent pinching of the fingers.

    7.12. The vice must be manufactured in accordance with GOST 4045, firmly attached to the workbench so that its jaws are at the level of the worker’s elbow. If necessary, wooden ladders should be installed along the entire length working area. The distance between the axes of the vice must be at least 1 m.

    The jaws of the vice must be parallel, have a notch and provide reliable clamping of the workpiece.

    7.13. The condition of the jacks used in operation (screw, rack, hydraulic) must comply with the requirements of the factory instructions. It is prohibited to load jacks in excess of their rated load capacity. Each jack must indicate: inventory number, load capacity and belonging to the workshop (area).

    7.14. Hand-held power tools must comply with the requirements of GOST 12.2.013.0.

    7.15. Hand-held power tools and portable lamps must be connected to a voltage of no more than 42 V. If it is impossible to connect the tool to a voltage of up to 42 V, it is allowed to use a power tool with a voltage of up to 220 V inclusive, if there are protective shutdown devices or external grounding of the body of the power tool with the mandatory use of protective means (mats, dielectric gloves, etc.)

    An electrified tool switched on for voltages above 42 V must be supplied complete with equipment personal protection. Connection to the electrical network must be made using plug connections with a grounding contact.

    7.16. To protect against breakage or abrasion of the sheaths, cables and electrical wires must be inserted into power tools and portable lamps through an elastic tube fixed in the body part and protruding outward to a length of at least five diameters.

    7.17. Removal of parts intended to protect against contact with moving parts and live parts must be impossible without the use of tools, if the standards or technical specifications for this type equipment there are no other instructions.

    7.18. Portable lamps must have a protective mesh attached to the handle and a hook for hanging. Live parts of the lamp socket and base must be inaccessible to touch.

    7.19. The working parts of hand tools (circular electric saws, electric shapers, electric grinders, etc.) must have protective covers.

    7.20. When the power supply is interrupted or during a break in operation, the power tool must be disconnected from the electrical outlet.

    7.21. If a malfunction is detected with the power tool, work with it must be stopped.

    7.22. Disassembly and repair of power tools, plug connections, and wires are permitted only to electrical personnel. The power tool must not be transferred to another person.

    7.23. Pneumatic tools (drilling machines, vibration chisels, impact wrenches, etc.) must comply with GOST 12.2.010 and be equipped with vibration-damping devices. Starting devices must be easy and quick to operate and must not allow air to pass through in the closed position.

    7.24. Hand-held pneumatic tools must be equipped with air exhaust silencers; in addition, exhaust compressed air should not fall on the employee and contaminate his breathing zone.

    7.25. Pneumatic hammers must be equipped with devices that prevent the striker from flying out.

    7.26. Before connecting the hose to the air tool, it must be purged. In this case, it should be directed in a direction where there are no people.

    The hose must be connected to the pneumatic tool using a fitting with good edges and threads, nipples and clamps. The hose sections should be connected to each other using a metal tube, squeezing it over the hose with clamps. Fastening the hose with wire is prohibited.

    Hoses to compressed air pipelines must be connected through valves. It is not allowed to connect hoses directly to the air line. When disconnecting the hose from the tool, you must first close the valve on the air line.

    7.27. To check a pneumatic tool before work, you should turn it on for a short time at idle before installing a replacement tool.

    7.28. A pneumatic tool can be put into operation only when the replacement tool (drill, chisel) is tightly pressed to the workpiece.

    7.29. Care and handling of pneumatic tools must comply with the instructions and operating rules developed by the manufacturer for each type of pneumatic tool.

    Repairing pneumatic tools at the workplace is not permitted. Repair of pneumatic tools must be carried out centrally and in accordance with the technical instructions of the manufacturer.

    After repair, the vibration level of the hand tool must be checked and subsequently recorded in the passport.

    7.30. Electric and pneumatic tools must only be issued to persons who have been instructed and knowledgeable about the rules handling him.

    7.31. It is not allowed to work with faulty or worn tools.

    7.32. It is not allowed to install wheels intended for cutting material on hand-held grinding machines.

    7.32. When working with hand-held electric and pneumatic tools weighing more than 10 kg, it is necessary to use balance pendants or other devices.

    Even the most primitive work is difficult to complete without the use of tools. And in order to deal with metal, you need a special tool - a metal-cutting one. Its purpose, types and production will be discussed in this article.

    Metal-cutting tools are necessary when processing metals by cutting. The layers of material are separated in order and become waste - chips. Thus, in the end we will have a semi-finished product or product as it was intended. A metal-cutting tool must meet the basic requirements:

    • be operated with proper efficiency;
    • perform work within specified tolerances.

    In addition to everything, he must:

    • do not lose working condition after non-one-time sharpening. The time in minutes during which it will be operated from one sharpening to another determines the durability of the tool;
    • securely fasten in the shortest period of time.

    Kinds

      Metal-cutting tools, their types are conventionally classified as:
    • manual;
    • machine tool

    Manual metal working tool

    Metal band cutting tool, which can be worked without attaching it to equipment, is classified as manual. This is how they use it:

    • chisel;
    • hand hacksaw;
    • scrapers;
    • files;
    • needle files;
    • taps;
    • dies (dishes).

    Many have acquired drills, hammer drills, angle grinders, powered by electricity, powered by hydraulic and pneumatic drives, and their active part is the very tool that is commonly called a hand tool. There are tool kits on sale, which is very convenient. Well, for example, take at least:

    BISON 28119-N110

      The manufacturer is Russian company"Bison". Having such a set on the farm, it will be possible:
    • making metric threads in holes with both normal and fine pitch;
    • cutting pipe thread, both in dead-end and through holes;
    • obtain external threads on steel products and non-ferrous metals.

    Composition and features of the BISON 28119-N110 set of 110 items:

    • dies (drawers), taps. Material: 9ХС alloy tool steel;
    • Each tap comes with a matching drill bit;
    • for drills with a ground profile and a cross-shaped point, the material is high-speed steel; the kit is equipped with tap holders having screw mechanism, fixing the shanks. It is possible to regulate it;
    • you can easily cut threads in places with limited access due to the presence of an end tap holder with a special chuck.

    Metal cutting machines and tools

    The following machines fall under the definition of metal-cutting machines:

    • drilling;
    • turning;
    • revolver;
    • boring;
    • coordinate boring;
    • milling;
    • planing.

    A metal-cutting tool, which is used as a machine tool, has the following zones:

    1. Clamping. This is the part that is fixed in the machine chuck in a strictly required position;
    2. Cutting or calibrating, having direct contact with the part. This includes the following elements:
    • blades;
    • grooves for chip exit;
    • chip curlers;
    • channels through which lubricant or cooling liquid flows;
    • basic elements, etc.

    The shape of these parts is different, but still, for all products design The cutting part does not have many variations. They all include:

    • front surface;
    • different number of back surfaces.

    The name given to the cutting tool is determined by the orientation of the working surfaces in relation to the part when working with it. Depending on what task the machine tool performs, it is classified as:

    • gear cutting;
    • making or processing holes, and such operations include drilling, countersinking, and reaming;
    • abrasive;
    • diamond;
    • thread-cutting

    Incisors

    Cutters are an executive tool for machines:

    • turning;
    • planing;
    • slotting;
    • boring;
    • turning-turret;
    • carousel

    Operations performed using cutters

    Using cutters:

    • make and bore holes;
    • process complex and absolutely smooth surfaces;
    • grooves are cut.

    Milling cutters

    The cutters are placed on milling machines. They have many sharpened blades and, rotating, perform:

    • operations with a variety of planes;
    • cutting of workpieces.

    Based on the geometry and position of the cutting blades in relation to the tool, which makes a rotational movement, cutters are:

    • cylindrical. They are an active working body for horizontal milling machines;
    • end They are equipped with vertical milling machines;
    • end. They process grooves of great depth;
    • disk, without which milling of grooves and grooves is not possible;
    • corner. With their help, angular grooves and inclined planes are made;
    • shaped, which are used to process all kinds of shaped surfaces.

    Broaches

    The tool has many cutting edges, adapted for use on a broaching machine. It is used to process:

    • holes passing through;
    • external surfaces.

    The shape of the broach can be:

    • cylindrical;
    • faceted;
    • keyed;
    • splined;
    • shaped external;
    • flat outer.

    Tools designed for making and processing holes

    Tools for forming and processing holes are presented:

    • sweeps;
    • drills;
    • countersunk;
    • countersinks;
    • boring plates;
    • countersinks;
    • combined tool.

    Gear cutting tool

    A gear cutting tool is used to cut and process:

    • gears;
    • worms;
    • gear racks.

    This group includes:

    • lerks (dies);
    • taps;
    • thread cutters;
    • cutters.

    Abrasive tool

    An abrasive tool is used to:

    • grinding;
    • polishing;
    • sharpening.

    The list consists of:

    • honing heads;
    • grinding wheels;
    • emery cloths;
    • bars.

    Diamond tool

    The cutting part is diamond. Diamond is not necessarily natural; it can also be synthetic. View presented:

    • honami;
    • bars;
    • grinding wheels;
    • incisors;
    • cutters with diamond plates;
    • dies, etc.

    What affects the quality of metal-cutting tools

    The ability to perform a task well is determined by many factors, namely:

    • how the cutting part is sharpened, at what angle, what configuration it has;
    • the properties of the material from which the working part is made;
    • depth, cutting speed, feed.

    Cutting element material

    The main indicator when choosing a material is red resistance. The more significant it is, the harder the material. In the production of metal-cutting tools, or more precisely, their active part, the following is used:

    1. Tool steel, which includes both carbon and alloy steel, and high-speed steel. The tool is used when parts from simple materials, but don't expect high speed cutting, it will not be possible to achieve it. Red resistance is the lowest - from 200 to 250 degrees C.
    2. Hard alloys with high wear resistance. They are usually alloyed with tungsten. When compared with tool steel, the cutting speed that a tool made from a high-hardness alloy can achieve is up to 4 times higher. Red resistance within 600-620 degrees C. If high-strength or heat-resistant steel is processed, then there is a need to use metal-cutting tools with a predominance of molybdenum, vanadium, cobalt in its composition, but the percentage of tungsten is reduced. At the same time, as hardness increases, fragility also increases. It cannot be used when performing uneven turning and shaped milling to great depths.
    3. The cutting part is reinforced with mineral-ceramic superhard plates. The basis of the material is aluminum oxide, to which molybdenum and chromium are added. The red resistance here is very high - 750-900 degrees C. However, despite the colossal hardness, the plasticity characteristics of this material are low, it is very fragile, which cannot be said about diamonds and cubic boron nitride.

    Manufacturers of metal cutting tools

    The production of metal-cutting tools present on our market is carried out by both our and foreign companies.

    Domestic

    Among Russian enterprises leading in this industry, one can name CJSC NIR, a closed joint-stock company New Tool Solutions, which produces monolithic tools exclusively from hard alloys. Its benefits include:

    • the presence of a special nano-coating;
    • greater wear resistance;
    • possibility of quick tool change;
    • reduction in regrinding costs.

    Another Elder domestic manufacturer: Moscow Tool Plant (MIZ). It produces gear-cutting, thread-cutting and thread-forming tools. High accuracy is ensured. Quality is oriented to international standards. Using this tool:

    • cut threads of different types;
    • process pipes and couplings on lathes;
    • get a custom thread.

    New offers from this manufacturer have appeared on the market:

    • hobs with slightly increased active part with a reduced outer diameter, which increased their durability;
    • a tool with a complex multi-layer coating.

    Foreign

    An excellent cutting tool in a large assortment is presented by the Israeli company ISCAR. The sale of ISCAR metal-cutting tools in Russia is carried out by Intechservice LLC. Buy a tool for:

    • milling;
    • turning;
    • drilling;
    • metal-cutting equipment is also supplied.

    A good tool is supplied by ARNO (Germany). They are processed by:

    • titanium;
    • aluminum alloys;
    • stainless steel:
    • cast iron;
    • hardened steel with a hardness of 70 HRC.

    How the Arno tool behaves in operation, see for yourself in this video:

    The metal-cutting tools produced by the Japanese corporation SUMITOMO also have a good reputation. They are made from:

    • hard alloys;
    • diamonds;

    Application area:

    • drilling and milling processing;
    • turning.

    There is always a demand for metal-cutting tools that perform slot milling and longitudinal turning grooving, German company Paul Horn GmbH is the most reputable instrument manufacturer in Europe. The nomenclature consists of:

    • SUPER-MINI manual boring tool with minimum diameter 0.2 mm;
    • MINI boring tool, where the replaceable insert has a front mount;
    • milling tool, allowing the use of the circular interpolation method when processing grooves. Diameter is at least 0.96 cm;
    • processing internal grooves. The smallest diameter is 0.3 cm;
    • cutting threads inside holes. Diameter - minimum 0.3 cm;
    • processing end grooves with a diameter of at least 0.5 cm;
    • CBN and PCD tools, where the base is cubic boron nitrate and polycrystalline diamonds, respectively.

    Construction tools are a concept that includes a very wide range of products. Let's start with the fact that the tool can be manual and mechanized. Large industries also use machine tools.

    It is better to start considering with hand tools. He, in turn, is divided by the type of work he performs. For drilling, surface treatment, laying and fixing building materials(sledgehammer, crowbar, claw hammer, stove hammer, claw hammer), transportation of materials, tools for earthworks. For example, hauling tools include items such as winches, jacks, pulleys, and blocks. Naturally, at any construction site there is various types jobs that women have to do, such as painting and plastering. It is for these types of work that blocks are used to transport buckets to the workplace, since according to standards, women are prohibited from lifting loads over seven kilograms. Jacks are used when something needs to be lifted. For example, if during roofing works it is necessary to raise the rafter or when concreting the floors, jacks support the formwork. Wheelbarrows are used to transport bulk mixtures such as crushed stone or sand.

    Plumbing and installation work is also carried out special tool(a set of bits, Nickel side cutters, a mallet with black rubber, a gas wrench, a magnetic bit holder and other wholesale items in the locksmith tools section). Here is an additional approximate, abbreviated list of such equipment: a hacksaw for wood, files, needle files, chisels and wrenches, and this is just the plumbing tool. And here is a list of installation tools: wrenches, sledgehammers, hammers, wire cutters, staplers, screwdrivers, assembly guns. Quite a wide list. Here's a short list auxiliary tool, this includes vices, testers and portable lamps. Almost everything on this list is familiar ordinary people and is used every day.

    Construction tools also include those intended for welding, and these are welding units, electrode holders, wires with coupling and welding rectifiers. TO construction tools can also be attributed carpentry tool(planes, nail pullers, trimmers, rotators and jigsaws. Such a tool is used when assembling wooden structures and other wood products. For protection, personal protective equipment for the welder is used ( welding mask, gas welder glasses).

    To give walls, floors and ceilings beautiful view use finishing tools such as brushes, trowels, knives, trowels, rollers, spray guns and tile cutters.

    Now let's get down to it the right tool. Without measuring how much you need to cut from a block of wood, you need to measure it. This is where a measuring tool comes to the rescue. You can’t do without a banal roulette today. But full list There is much more to the tool than a simple tape measure. There is also a geodetic tape measure, calipers, hydraulic level, range finders, rulers, probes, magnifying glasses, and endoscopes.

    Not a single construction process can do without all these devices. Even if you just decide to renovate a room, you will have to use at least one of the above tools.