Designed for use in power drill chuck and chuck adapter
Power bits are screwdriving bits that are longer to work with both power drills and impact screwdrivers
All IRWIN fastener drive bits are manufactured to meet ANSI standards
Forged from high-grade S2 steel, IRWIN bits are between 58 and 62 on the Rockwell hardness scale
Specifically designed for the higher torque requirements of power tools. Best suited for maintenance and repair work. Used in high torque power tools. Designed for use in power drill chuck and chuck adapter.