.'Made from heat treated hardened and tempered Chrome Molybdenum steel with an industrial black phosphate finish； 

.Sizes: 1/2" DR. X 78MM (L) M14-16-18 

.Sizes: 1/2" DR. X 40MM (L) M14-16-18 

.Each socket has A drilled end to facilitate retaining ball bearing for use on ratchets and breaker bars. 

.For use on all air powered & battery powered impact tools