Bosch Impact Tough ITPH1102 Screwdriver Insert Bit, #1 Drive, Phillips Drive, 1/4 in Shank, Hex Shank, 1 in L

Impact Tough™ driver bits and sockets are designed to withstand the high torque produced by today's more powerful impact drivers. The screwdriver bits have an extended torsion zone to absorb torque peaks, extending bit life over standard screw driving bits. They also feature machined tips for outstanding bit grip. Impact Tough™ sockets are engineered for high torque, with forged steel that reduces breakage and absorbs torque peaks to reduce stress.