Internal hexagonal wrench specification code T30, T40, T50, T60, T80;
These two are commonly used for tightening hexagon socket screws
Cross shank socket wrench. Models 1.2,3,4
Monkey wrenches. There are no specific specifications, but according to length, there are 100150200300375450600.650, and there are also types of wrenches that can be divided into single head and double head, scientifically known as solid wrenches and ring wrenches, but there are too many specifications The specifications of the single head include 3.2.4.5.5.5.6.7.8.9.70.75,80, which are used to tighten the outer hexagon screws
The screwdriver is divided into a straight shape and a cross shape
The model of the hex wrench is based on the size of the opposite side of the hexagon. How much is the size of a bolt lower than the size of a screw, compared to the model of a hex wrench according to national standards?
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:
The adjustable wrench, also known as the adjustable wrench, is a tool used to tighten or loosen angled screws or nuts. Electricians commonly use three types: 200, 250, and 300mm. When using them, they should be selected according to the size of the nut.
When using, hold the handle with your right hand. The farther back your hand is, the easier it is to move.
When pulling the small nut, it is necessary to continuously rotate the worm gear to adjust the size of the wrench. Therefore, the hand should be held close to the blank lip and the worm gear should be adjusted with the big finger to fit the size of the nut.
When clamping the nut with the wrench opening of the adjustable wrench, the locking lip should be on top and the locking lip should be on bottom. The wrench should not be used in reverse.
When pulling a rusted nut, a few drops of kerosene or engine oil can be added to the nut to make it easier to tighten.
When it cannot be twisted, 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 wrench.
Rural electricians often use open end wrenches (also known as solid wrenches). It has two types: single head and double head, and its opening is suitable for the size of the screw head and nut, and it is made into a set according to the standard size. Holistic wrenches include square, hexagonal, and dodecagonal (commonly known as ring wrenches). Among them, the plum blossom wrench is widely used in rural electricians. It can change the direction of the alarm as long as it is turned 30 times, making it more convenient to work in narrow areas.
The sleeve handle is composed of a set of plum blossom slips of different sizes, which are 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. The swing angle of this type of newspaper hand is very small, and it can tighten and loosen screws or nuts. Turn 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 support rod slides out in the slope of the spur gear teeth, so the screw or nut will not follow the reversal. If you need to loosen the nail or nut, simply flip the ratchet wrench and turn it counterclockwise.
An internal hexagon wrench is used to install and remove internal hexagon screws. Commonly used for the disassembly and assembly of certain electromechanical products. The force tester 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 on the square or hexagonal head and secure it with steel balls. There is also a long pointer installed at the top. The scale plate is fixed on the handle, with a scale value of 1 Newton (or kilogram/meter) per grid. When a certain value of tightening force is required, or when a nut (or screw) requires the same tightening force, this wrench is used.
Hexagonal wrench is used for assembling and disassembling large hexagonal screws or nuts, and can be used by external electricians to load and unload steel frame structures such as iron towers.
