FastenMaster HeadLok Spider Driver Bit *Sub Brand: HeadLok *Extension Length: 2 in. *Dril Bit Length: 2 in. *Product Type: Spider Driver Bit *Number of Pieces: 2 pk *Material: Steel, Steel *Made from rugged high-speed steel *Features a drive system with 8pts of bit contact for fast and easy installations*Designed to drive FastenMaster headlock screws