1.Upgraded 10/20 piece set, with a large quantity to meet household maintenance needs, comes with a box for easy storage after use and is not easy to lose

2.Suitable for strong impact and high-strength screw-driving operations, suitable for screwdrivers/electric screwdrivers/hand drills, especially for impact screwdrivers

3. Impact resistance, the bit hardness is as high as 62HRC, and the length is increased to absorb torque to reduce damage, and it is easy to penetrate steel plates, wood and the like with special nails

4.Super strong magnetic force, which can be used for adsorption fixing screw operation

5. It is treated with phosphating black, which is wear-resistant and not easy to rust

6.The screwdriver head is equipped with anti slip threads, making it less prone to slipping and more tightly attached to the screw