3Pc Swivel Impact Socket Adapter Set for 1/2", 3/8", 1/4" Drive - Universal ConnectorsPrecisely machined, heat treated black chrome molybdenum steel provides excellent durability and strength with every impact movement. Full 360 degree motion allows U joint swivel sockets to access complete rotation to reach tight spaces for more better coverage. Spring loaded ball at the end of the bar, locks socket into place for security and prevents dropping or slippage. Package Include: 1x 1 2" Adaptor 1x 3 8" Adaptor 1x 1 4" Adaptor