This bit holder is suitable for standard 1/4" hex. screwdriver bits. The round blade is made from hardened chrome vanadium steel, which is chrome plated for corrosion protection. There is a magnetic tip for efficient holding and rapid changing of screwdriver bits. It has an ergonomic soft grip handle providing comfortable use. The handle shape helps ensure the bit holder does not roll off flat surfaces. There is a hang hole integrated into the handle for convenient storage.