These precision-milled bits are 1'' in length and are 1/4'' hex. Fits replaceable-bit screwdrivers and other sockets that accept 1/4''-hex bits. TORX® is a registered trademark of Acument Intellectual Properties- LLC. Warning:Always wear approved eye protection. Warning:NOT insulated. Will NOT protect against electrical shock. Warning:Do NOT use to pry or chisel. Weight: Color: