Wera HMA Zyklop 1/4in Ratchet Sockets - Wera 05003518001, This 5/16in socket from Wera can be used with a Zyklop ratchet with 1/4in drive to tighten or loosen hexagon-headed screws, nuts and bolts.
Made from chrome vanadium with a brushed chrome-plated finish, this socket is suitable for use with both hand and (non-impact) power tools.
Wera 05003518001 HMA Zyklop Ratchet 1/4in Socket 5/16in