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Knowledge of manual tool classification and use

2020-01-16 03:27:46 Click Times 987

Hand tools can be divided into wrenches, pliers, screwdrivers, tape measures, hammers, sleeves, cutting, scissors, sets, and auxiliary tools such as vehicles, each of which has a different model.

Screwdriver: a tool used to turn a screw to force it into place, usually with a thin wedge head that is inserted into a slot or notch in the screw head - also called a screwdriver.

Wrench: hand tool for securing the open or holed fasteners of bolts or nuts by turning bolts, screws, nuts and other threads using the lever principle. Wrenches are usually made at one end or both ends of the handle with external forces applied to the clamping handle and external forces applied to the handle to turn the bolt or nut the opening or bushing of the holding bolt or nut. The bolt or nut can be turned by applying a force to the shank in the direction of the thread.

Tape measure: tape measure is a common measuring tool in daily life. We often see is the steel tape measure, construction and decoration commonly used, is also one of the family essential tools. It is divided into fiber tape measure, tape measure, waist measure and so on. Lu ban ruler, wind ruler, wen meter also belong to the steel tape measure.

Wallpaper knife: a kind of knife, sharp blade, used for cutting wallpaper and other things, so the name "wallpaper knife", also known as "art knife". Decoration, decoration, advertising plaque industry often used.

Level rule: the level rule has a horizontal bubble, which can be used for testing, testing and debugging whether the equipment is installed horizontally.

File: a hand tool with many fine teeth and stripes on the surface for filing smooth work pieces. Used for micro processing of metal, wood, leather and other surface.

Pliers: a kind of hand tool used for holding, fixing the workpiece or twisting, bending or cutting the wire. The shape of the pliers is v-shaped and usually consists of three parts: handle, jaw and nose.

Test pen: also called test pen, referred to as "the pen". It is an electrical tool used to test whether there is any live electricity in the wire. There is a neon bubble in the pen. If the neon bubble emits light during the test, it indicates that the wire is electric or that it is a firewire in the path. The tip and tail of the pen are made of metal materials, and the pen holder is made of insulating materials. When using the test pen, be sure to touch the metal part at the end of the test pen with your hand, otherwise, the neon bubble in the test pen will not glow due to the absence of a circuit between the charged body, the test pen, the human body and the earth, resulting in misjudgment and the charge body is not charged.

Stripper: stripper is one of the common tools for internal electrician, motor repair, instrument and instrument electrician. Its appearance is as follows. It is composed of a cutting edge, a press line and a clamp handle. The clamp handle of the stripper is provided with an insulating sleeve with a rated working voltage of 500V. Wire stripper is suitable for peeling plastic, rubber insulated wire and cable core wire. The usage method is: place the thread head to be peeled in the cutting edge of the pliers head, pinch the two pliers handle by hand, then loosen it, the insulating leather will be separated from the core wire.

Multimeter: it is composed of three main parts: meter head, measuring circuit and conversion switch. It is used for measuring current and voltage.

Hacksaws: including hand saws (household, woodworking), cutting saws (branch trimming), folding saws (branch trimming), hand bow saws, edge saws (woodworking), longitudinal cutting saws (woodworking), cross-cutting saws (woodworking)

Electrician's knife: electrician's knife is a kind of cutting tool commonly used by electrician. Common electrical knife by the blade, blade, knife handle, knife hang and so on. When not in use, shrink the blade into the handle. The root of the blade is hinged with the handle, which is marked with scale lines and scale marks. The front end is formed with a screwdriver head, and the two sides are processed with a rasp surface area. The blade is provided with an inner concave curved edge, and the end of the curved edge is formed with a blade tip. The blade of electrical knife has many functions, only one electrical knife can be used to complete the operation of connecting wires, no need to carry other tools, with simple structure, easy to use, various functions and other beneficial effects.

Hammer: a tool that strikes an object to move or deform it. * often used to knock a nail, correct or break an object. Hammers come in a variety of forms, most commonly a handle and a top. One side of the top is flat for hammering, and the other side is a hammer head. The hammer head can be shaped like a ram's horn or a wedge, and its function is to pull out the nail. It also has a round hammer head

Wire cutters: a wire cutters is a clamping and cutting tool consisting of a head and a handle. The head consists of a mouth, a tooth, a cutting edge, and a guillotine. The function of each part of the pliers is: (1) the teeth can be used to tighten or loosen the nut; The cutting edge can be used to cut the rubber or plastic insulation layer of the soft wire, can also be used to cut the wire, iron wire; Chaff can be used to cut the wire, wire and other hard wire; (4) the insulated plastic pipe forceps withstand pressure of more than 500V, with it can be charged shear wire.

Needle-nosed pliers: also known as repair pliers, mainly used to shear wire diameter thin single strand and multi-strand wire, as well as single-strand needle-nosed pliers wire joint bending ring, stripping plastic insulation layer, it is also one of the common tools for electricians (especially internal electricians). It is made up of a pointed head, a cutting edge and a pliers handle. The clamp handle of electrician's needle-nosed pliers is covered with insulation sleeve with rated voltage of 500V. Needle-nosed pliers due to the head is more pointed, the use and narrow space operation using needle-nosed pliers bending wire joint operation method is: first fold the thread head to the left, and then close to the screw clockwise bending to the right.

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