IRWIN Pro-Pak 357320 Insert Bit, #2 Drive, Phillips Drive, 1/4 in Shank, Hex Shank, S2 Steel

Made of high-grade S2 tool steel and milled for precise fit. Specifically built for the higher torque requirements of power tools, can be used with drill chuck or quick change chuck adapter in applications such as appliance, automotive, aviation, decking, drywall, electronics, furniture assembly, general construction and HVACR, 1/4 in hex shank.