Manual wrench is also called ordinary wrench, which is mainly used in ordinary life and work. Its use is relatively simple. It is mainly divided into percussion wrench, socket wrench, socket driver, torque wrench, torque wrench, cross wrench, ratchet wrench, hook wrench, hexagon wrench, inner four square wrench, manual clutch torque wrench, pipe wrench, T-shaped wrench, L-shaped wrench and filter Wrench, combination wrench, other wrench, etc. Torque wrench is divided into ring spanner, pointer wrench and digital display wrench.
Use of hand wrench
1. Select the corresponding wrench according to the characteristics of the fastener to be tightened.
2. Tighten, hold the end of the handle by hand and screw it clockwise; loosen it and turn it anticlockwise.
Features of hand wrench
Simple operation, low price and high labor intensity.