1. Ordinary screwdriver Different screwdrivers It is a screwdriver with the head and handle built together. It is easy to prepare and can be used as long as it is taken out. However, because there are many different lengths and thicknesses of screws, it is sometimes necessary to prepare many different screwdrivers. 2. Combined screwdriver…
Uses: There are many styles and specifications of screwdrivers. They are divided according to the shape of the head. The commonly used ones are mono-shaped, cross-shaped and special shapes. According to the material of the handle, the commonly used are wooden handles, plastic handles, and plastic handles. kind. Common screwdriver usage methods: ①The use of…
1. It can be used as a wrench or socket wrench. It is a special tool for tightening or loosening screws. It is composed of several inner hexagonal sleeves and one or more upper sleeve handles. The inner hexagons of the sleeve are arranged in sequence according to the bolt type, which can be selected…
1. The sleeve is suitable for the construction of the steel bar connection in the reinforced concrete structure of various structures that bear the two-way force of tension and compression. 2. Material saving and energy saving are not restricted by the composition and type of steel bars. 3. The sleeve can be connected in all…
Used for the nut end or the bolt end is completely lower than the surface to be connected, and the diameter of the concave hole cannot be used for open-end wrenches, adjustable wrenches and box wrenches, just use a socket wrench, in addition to the space limitation of the bolt parts, only a socket can…
Torque wrench-also called torque wrench or torque wrench. Torque is the product of force and distance. When tightening screws, bolts, nuts and other threaded fasteners, it is necessary to control the applied torque to ensure that the threads are tightened without excessive torque. The thread is broken, so use a torque wrench to operate. First…
Torque wrenches are labor-saving. There are many places where torque wrenches can be used in daily life. Generally, torque wrenches must be used where there are screws. It is widely used in automobiles, motorcycles, railways, bridges, pressure vessels, etc.. A digital torque wrench dedicated to the detection of thread tightening torque in industries that have…
The torque wrench can be used for both initial tightening and final tightening. It is used to adjust the torque first, and then tighten the bolts. Features of fixed torque electric wrench: Convenient operation, time-saving and labor-saving, adjustable torque.
The socket wrench is composed of a set of plum tubes of different sizes, which are continuously rotated by the bow-shaped handle when in use, and the work efficiency is high. When the size of the screw or nut is large or the working position of the wrench is very narrow, a ratchet wrench can…
(1) When pulling a large nut, a larger torque is often used, and the hand should be held near the end of the handle. (2) When pulling the small nut, the torque used is not large, but the nut is too small and easy to slip, so the hand should be held close to the…
