Made of S2 steel and treated with heat treatment, the surface is treated with phosphate black, and the hardness is as high as HRC58, ensuring its durability, rust resistance, corrosion resistance, wear resistance and impact resistance.High-precision bite, tighter bite with screws and no slipping. The bit with center hole is magnetic and can lock the screw firmly and accurately, making it difficult to fall off.Equipped with high-precision concentric shaft, it is not easy to slip and shake.Widely used with electric screwdrivers, hand screwdrivers, pneumatic drills, power drills, cordless drills or any other drill with a 1/4" hex shank. Can be used for the installation and maintenance of cabinets, bed frames, electrical appliances, air conditioners, cars, bicycles, motorcycles, etc.
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