Specification of Allen wrench

Hexagonal wrench specifications T30, T40, T50, T60, T80;
These two are mostly used for tightening hexagon socket screws
Cross handle socket wrench Models 1.2, 3, 4
Active wrench There are no specific specifications, but there are 100, 150, 200, 300, 375, 450, 600, and 650 in terms of length. There are also single head and double head types, such as the dumb wrench and the plum wrench, which have too many specifications The specifications of the single head include three types: 3.2.4.5.5.5.6.7.8.9.7.50, and 80, which are used to tighten hex screws ..
Screwdrivers are divided into straight and cross shapes ..
The model of the hexagonal wrench is based on the dimensions of the opposite sides of the hexagon. How much lower is the size of the bolt compared to the model of the screw in the national standard hexagonal wrench?
4#. M5
5#, M6
6#. MB
8#. M10
10#, M12
12#, M14.M16
14#. M16.M20
17#, M20
19#, M24
22#. M30
7#,36
Use of wrench:
A flexible wrench, also known as an adjustable wrench, is a tool used to tighten or loosen angled screws or nuts. There are three commonly used sizes for electricians: 200, 250, and 300mm. When using, the size of the nut should be selected accordingly.
When using, hold the handle with your right hand. The farther back the hand is, the more effortless it is to move.
When pulling the small nut, it is necessary to continuously rotate the worm gear and adjust the size of the wrench, so the hand should be held close to the lip and the big finger should be used to adjust the worm gear to fit the size of the nut.
When clamping the nut with the opening of the flexible wrench, the dead lip is on top and the flexible lip is on the bottom. The adjustable wrench must not be used in reverse.
When pulling a rusty nut, you can drop a few drops of kerosene or engine oil on the nut to make it easier to turn.
When unable to twist, do not use a steel pipe to cover the handle of the adjustable wrench to increase torque, as this can easily damage the adjustable wrench lip.
Do not use a flexible wrench as a tool.
Rural electricians often use open-end wrenches (also known as dumb wrenches). It has two types: single head and double head, and its opening is compatible with the size of the screw head and nut, and is made into a set according to the standard size. There are square, hexagonal, and twelve cornered overall wrenches (commonly known as plum blossom wrenches). Among them, the plum blossom wrench is widely used in rural electricians. It can change the direction of the alarm by turning it around 30 degrees, so it is more convenient to work in narrow places.
The sleeve hand is composed of a set of plum blossom slips of varying sizes, which can be continuously rotated with a bow shaped handle during use, resulting in high work efficiency. When the size of the screw or nut is large or the working position of the wrench is narrow, a ratchet wrench can be used. This type of hand swing has a small angle and can tighten and loosen screws or nuts. Rotate the handle clockwise when tightening. A square sleeve is equipped with a support rod. When the hand bridge is pulled back in the opposite direction, the strut slides out in the inclined surface of the ratchet teeth, so the screw or nut will not reverse. If you need to loosen the nail or nut, simply turn the ratchet wrench counterclockwise.
The hex wrench is used for installing and removing hex screws. Commonly used for disassembly and assembly of certain electromechanical products. The force measuring hand has a long elastic rod, one end of which is equipped with a handle, and the other end is equipped with a square or hexagonal head. Install a replaceable sleeve at the square or hexagonal head and clamp it with steel balls. There is also a long pointer installed at the top. The scale plate is fixed on the handle seat, with a scale value of 1 Newton (or kilogram/meter) per grid. When a certain amount of tightening force is required, or when multiple nuts (or screws) require the same tightening force, this wrench is used.
Hexagonal wrench is used for installing and removing large hexagonal screws or nuts, and can be used by external electricians to load and unload steel frame structures such as iron towers.