What is the structure of a hand tool?

Hand tools can be divided into wrenches, pliers, screwdrivers, tape measures, hammers, sockets, cuttings, scissors, sets, and auxiliary tools such as tool carts, etc., each category is different 's model.

The wrenches include open-end wrenches (rigid hands), double-prong wrenches, ratchet wrenches (quick wrenches), dual-purpose wrenches (composite wrenches), tubing wrenches, T-socket wrenches, cross-socket wrenches, adjustable wrenches and other categories;

Pliers include wire pliers, needle nose pliers, diagonal nose pliers, retaining ring pliers, carp pliers, water pump pliers, pipe pliers, strong pliers and other categories;

The screwdriver has a character, a cross, a rice character, a hexagon, a pattern and other categories;

The sleeves are divided into ordinary sleeves, flower sleeves (E-type sleeves), screwdriver sleeves (BIT sleeves), spark plug sleeves, strong sleeves, etc. According to the specifications, there are three common specifications: 1/4", 3/8" and 1/2", " is the representation of inches; at the same time, each specification is divided into 6 angle sleeves and 12 angle sleeves;

Hammers are divided into claw hammer, fitter hammer, round head hammer, rubber hammer and installation hammer;

Cutting categories include files, diamond files, iron shears, aviation shears, utility knives, square pipe saws, pipe cutters, wire breakers, etc.;

In terms of materials, there are Luo vanadium steel, carbon steel, alloy steel and so on.