Superfast fixing or pull out from any wood or timber Stick fit head recess for KTX, square and some pozi screw bits means no wobbling or slippage Free 50 mm hardened steel bit in every box so suitable for any power tool driver Special Design means less splitting, faster fitting, smoother finish in timber Award winning, critically acclaimed screws suitable for home or professional tradesman use, Weight: 3.3289801562 pounds, Manufacturer: Concept Distribution Limited