Duralast 1/2in Drive 17mm Hex Bit Socket 【Pin Hole】 The sleeve is designed with a separate pinhole base, which allows a locking pin to be placed for extra security to maintain stability when strong torque movements are applied. Color coded ring makes it effortless to identify socket sizes. The lengthened design makes it suitable for more work scenarios. 3/8 Torx 17mm Hex Impact Socket 1/2" Drive - CR-MO Steel Professional Laser Marked Socket Impact socket with hex fitting. Properties: Drilled: For nut drivers with locking pins, spring-loaded ball or drilled drive pins; O-ring groove: For O-ring... 【Service Guarantee】All MIXPOWER Tools meet or exceed ANSI performance standards. 【Specification】 1/2 drive impact socket, H17 (17mm) hex bit, 3., 07-inch (78mm) total length. 1/2 Drive x H17 17mm Impact Hex Bit Socket Metric 3 Length Cr-Mo It comes with 1 year quality guarantee.