The BlueSpot Tools Titanium Coated Pozi Screwdriver Bits are manufactured from high-quality S2 steel with a titanium nitride coating for long lasting durability. Suited to high resistant materials including hard wood, metal, plastic and drywall. For use with all power drills, cordless drills and screwdrivers with a 1/4in hex bit holder. Specification: Length: 50mm.Pack Quantity: 10.Additional Information:• Head Type: Pozidriv• Pack Qty.: 10• Size: PZ2