Tough durable bits with rockwell hardness between 58-62 HRC
Bearing groove for use in Quick-Change adapters
Designed for use in power drill chuck and chuck adapter
Magnetised tips for improved fastener retention
Tough shock grade S2 alloy tool steel
IRWIN® Magnetic Standard Fastening Bits Provide A Range Of High-quality Bits Engineered For Use In Impact Drivers And Drills For The Completion Of Multiple Metal And Wood Fastening Applications.