What are the types of pliers？

Depending on the performance, pincers can be classified as: Pinch-type; shearing type; pinching and shearing type.

Depending on the type, it can be divided into hydraulic pliers; crimping pliers; hydraulic wire pliers; wire strippers; rechargeable hydraulic cable pliers.

Depending on the shape, it can be divided into a sharp mouth; flat mouth; round mouth; curved mouth; oblique mouth; needle mouth; top cut;

Depending on the purpose, it can be divided into DIY, industrial pliers, special pliers, etc.

According to structural morphology: There are two types of gills: pierced and stacked. The usual specifications are 4.5" (mini pliers), 5", 6", 7", 8", 9.5", etc.

The main categories are as follows:

1. Wire cutters

The wire cutter is a kind of clamp and cutting tool, and its shape is shown in Figure 1 on the right.

The wire cutter consists of a pliers head and a pliers handle, and the pliers head includes a jaw, a toothed mouth, a knife edge, and a guillotine mouth. The functions of each part of the pliers are: ① the tooth mouth can be used to fasten or loosen the nut; ② the knife edge can be used to cut the rubber or plastic insulation layer of the flexible wire, and can also be used to cut the wire and iron wire; ③ the guillotine mouth can be used to Cut off hard metal wires such as wires and steel wires; ④The insulating plastic tube of the pliers can withstand a voltage of more than 500V, and it can cut wires with electricity. During use, avoid littering. so as not to damage the insulating plastic pipe. The wire cutters commonly used by electricians have various specifications such as 150mm, 175mm, 200mm, and 250mm.

2. Needle nose pliers

Needle-nose pliers, also known as repairing pliers, are mainly used to cut single-strand and multi-strand wires with thinner wire diameters, as well as bend single-strand wire joints, peel off plastic insulation layers, etc. It is also an electrician (especially an internal electrician) One of the commonly used tools. It is composed of a pointed head, knife edge, and plier handle. The handle of the electrician's needle-nose pliers is covered with an insulating sleeve with a rated voltage of 500V. The needle-nose pliers have a sharper head, so the operation of bending wire joints with needle-nose pliers is as follows: firstly folding the end of the wire to the left, and then, approaching the screw, bend it to the right in a clockwise direction.

3. Wire strippers

The wire stripper is one of the tools commonly used by inside electricians, motor repairers, and instrumentation electricians. Its appearance is shown in Figure 2. It is composed of a knife edge, a crimping mouth, and a pliers handle. The handle of the wire stripper is covered with an insulating sleeve with a rated working voltage of 500V.

Wire strippers are suitable for stripping plastic and rubber-insulated wires and cable core wires.

4. Pipe wrench

It is used to fasten or disassemble various pipes, piping accessories, or round parts. It is common tools for pipeline installation and repair. Its inlay may be made by malleable casting. It is also made of aluminium alloy, which is noted for being lightweight, easy to use and not prone to rusting.

5. Biased pliers

Biased pliers are sometimes called diagonal pliers. Part-jaw pliers are the best tool to use when cutting wires, especially when cutting excess wire ends after soldering points have been wound on the wire, and lead wires that are too long after the printed circuit board has been placed on the plug. Biased pliers are also commonly used to cut insulating sleeves, nylon cable clips, etc. in place of regular scissors. The pliers with a body length of 160 mm and a plastic insulating handle are the most commonly used.