Scope of use: Mechanical repair, furniture repair, car repair, camera repair, toy repair, bicycle repair: Design concept: Shock resistant screwdriver head - specially designed for high impact and high-strength screwdrivers, suitable for screwdrivers, especially impact screwdrivers Product Material: High precision optimized material. The drill bit has a high hardness and is sturdy and durable Mechanical principle design - high torque, the collision reaction force generated by the impact of the screwdriver after contact with the screw head is partially absorbed by the torque, effectively preventing the breakage of the screwdriver head Vibration prevention: shock resistant - penetrable metal shock resistant, crack free, easy to penetrate metal plates with dovetail nails, Manufacturer: ERETYRET