17mm Hex Impact Bit Socket, H17 1/2-Inch Impact Drive Allen Socket, Cr-Mo Steel Lengthen Hex Screwdriver Adapter for Electric Ratchet Wrenches Fastening Screws 1PC | H17 17MM
A lengthened H17 (17mm) internal-hex impact bit socket for 1/2-inch drive impact wrenches and ratchets—built from chrome molybdenum steel with a black phosphate coating, chamfered entry, and a pinhole for added retention with a locking pin.