Wera Zyklop 8100 SA KC 1/4" Drive Socket Set - Imperial / Inch / SAE1/4" Socket: 3/16" 1/4" Socket: 1/4" 1/4" Socket: 5/16" 1/4" Socket: 3/8" 1/4" Socket: 7/16" 1/4" Socket: 1/2"Sockets feature distinctive knurling for easy manual tightening Sets come on a rail system with clips Manufacturer Part #: 05300201001