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The so-called hand tools, also known as hand tools, its relative to power tools. A tool is twisted or exerted chiefly by hand.
Hand tools can be divided into wrench class, pliers class, screwdriver class, tape measure class, hammer class, sleeve class, cutting class, scissors class, set class, and auxiliary class such as tool car, etc., each class has a different model.
There are open wrench (mechanical hand), double box wrench, ratchet wrench (quick wrench), dual wrench (compound wrench), oil pipe wrench, T box wrench, cross box wrench, flexible wrench and so on.
Pliers are wire pliers, needle-nose pliers, diagonal nose pliers, retainer pliers, carp pliers, pump pliers, pipe pliers, pliers and other categories;
Screwdrivers have the categories of single, cross, rice, hexagonal, pattern and so on;
Sleeve is divided into ordinary type sleeve, pattern sleeve (E type sleeve), driver sleeve (BIT sleeve), Mars plug sleeve, strong sleeve, etc. According to the common specifications of 1/4", 3/8" and 1/2" three kinds of specifications, "is inch; At the same time, each specification is divided into 6 Angle sleeve and 12 Angle sleeve;
Hammers are divided into claw hammer, fitter hammer, round head hammer, rubber hammer and installation hammer;
The cutting class has file, diamond file, iron shears, aviation shears, utility, square pipe saw, pipe cutter, wire cutters and other categories;
In the material, there are Lov steel, carbon steel, alloy steel and so on.
The screwdriver
A tool used to twist a screw to force it into position, usually having a thin wedge head that is inserted into the slot or notch of the screw head -- also called a screwdriver.
wrench
A hand tool that uses a lever to turn bolts, screws, nuts, and other threads to tighten the opening or casing of a bolt or nut. A wrench is usually made of a clamp at one or both ends of the handle to exert an external force on the handle to exert an external force on the bolt or nut to turn the opening or sleeve hole of the bolt or nut. The bolt or nut can be turned by applying external force to the shank along the direction of thread rotation.
The hammer
A tool used to knock an object to move or deform it. It is most commonly used for hammering nails, straightening or cracking open objects. Hammers come in various forms, the most common being a handle and a top. The top side is flat for striking, and the other side is a hammer. The hammer can be shaped like a ram's horn or a wedge, and its function is to pull out nails. There are also hammerheads with round heads.
Test pencil
Also called measuring pen, short for "electric pen". It's an electrical tool used to test for electrical power in a wire. There is a neon bubble in the pen. If the bubble glows during the test, it indicates that the wire has electricity or is a live wire in the path. The nib and tail of the test pen are made of metal material, and the pen holder is made of insulating material. When using the test pen, it is necessary to touch the metal part at the end of the test pen with your hand. Otherwise, the neon bubbles in the test pen will not glow because there is no circuit between the charged body, the test pen, the human body and the earth, resulting in misjudgment that the charged body is not charged.
A tape measure
Tape measure is a measuring tool commonly used in daily life. One of the most common tools you'll see is a steel tape measure, which is commonly used in construction and decoration and is also one of the most essential tools in the home. Divided into fiber tape measure, tape measure, waist measure and so on. Luban's ruler, wind water's ruler and Wen meter are also steel tape measures.
Wallpaper
A, sharp blade, used to cut wallpaper and other things, so the name "wallpaper", also known as "utility". Decoration, decoration, advertising plaque industry often used. [2]
The electrician
Electric is a kind of cutting tool commonly used by electricians. An ordinary electrician's consists of a blade, a blade, a handle and a hanger. When not in use, shrink the blade into the handle. The root of the blade is hinged with the handle, which is equipped with a scale line and scale mark, the front end is formed with a screwdriver cutter head, both sides are processed with a file surface area, the blade is provided with an internal concave curved edge, the end of the curved edge is formed into a edge tip, the handle is provided with a protection button to prevent the blade from recoilling. The blade of electric has multiple functions. When using, only one electric can complete the operation of connecting wire, without carrying other tools. It has the beneficial effect of simple structure, convenient use and diversified functions.
hacksaw
These include hand saws (household, woodworking), cut saws (branch trimming), folding saws (branch trimming), hand bow saws, edging saws (woodworking), slinting saws (woodworking), and cross-saws (woodworking).
Spirit level
The level with the horizontal bubble, can be used for inspection, testing, debugging equipment installation level.
Combination pliers
Wire cutters are a kind of clamping and cutting tool, consisting of a pliers head and a pliers handle, including a pliers mouth, teeth, cutting edge, and a guilt-cutting mouth. The functions of each part of the pliers are:
The mouth can be used to tighten or loosen the nut;
(2) The edge can be used to cut the rubber or plastic insulation layer of soft electric wire, but also can be used to cut wire, wire;
The guillotine mouth can be used to cut wire, steel wire and other hard metal wire;
(4) The insulated plastic pipe of the pliers can withstand pressure above 500V, and it can be charged to cut the wire.
Long nose pliers
Also known as the trimming pliers, it is mainly used for cutting single and multi-strand wires with thin wire diameters, as well as bending rings for the wire joint of single-strand needle-nose pliers, stripping the plastic insulation layer, etc. It is also one of the commonly used tools for electricians (especially internal electricians). It is composed of a prong, a edge and a pliers handle. The handle of needle-nose pliers for electricians is covered with an insulating sleeve with a rated voltage of 500V. Because the head of needle-nose pliers is pointed, the operation of using needle-nose pliers to bend the wire joint is as follows: first bend the wire head to the left, and then bend it clockwise to the right by the screw.
Wire stripping pliers
Wire stripper is one of the tools commonly used by internal line electricians, motor repair electricians and instrumentation electricians. Its appearance is shown in Figure 1. It is composed of a edge, a wire press and a pliers handle. The handle of the wire stripper is covered with an insulation sleeve with a rated operating voltage of 500V. Wire strippers are suitable for peeling plastic and rubber insulated wires and cable cores. The method of use is: place the wire end to be peeled in the cutting edge of the pliers head, pinch the two pliers handles with your hand, and then loosen, and the insulation skin will be detached from the core wire.


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