Cross-head screwdriver bit, made of heat treated S2 steel, high hardness, impact resistance, shock resistance, wear resistance.Cross Screwdriver Head features anti-slip teeth, each edge can be accurately locked to the screw without falling, improving your work efficiency.Phillips head screwdriver bit with strong magnetic, can lock firmly and accurately the screws without damage, also can be firmly fixed on screwdriversShank Screwdriver Bits can be widely used in the pneumatic screwdriver, electric screwdriver, rechargeable drill, etc. Ideal tool for repairing household appliances, precision instruments, and furniture.Delivery Quantity: 1set ,Package Contents: Only the above package contents, excluding other products.Size: length 150mm, shank diameter 6.35mm(Reminder: The size is measured manually, please allow 1-2 cm measurement error)color: blue(Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)