Britool E113589B Drive Impact Sockets 22MM,Professional quality Covered by the Britool Expert Tools Lifetime Guarantee,Complies with ISO 2725-2,1/2'' drive,6pt hex socket Designed specifically to withstand the demands of impact machinery,Tool has hole and groove to insert ring and pin,For your safety, use impact tools with appropriate rings and pins,Ring & pin not supplied with tool but are available as a Pack of 5 Rings & Pins Chrome-Molybdenum steel for quality, strength and performance,Etched with product size and reference for easy identification