The Williams 1 1/2'' Dr Retaining Ring Heavy Crush Gauge - 4-3/8'' - 8-4XS fits all Williams 1-1/2" Drive Sockets and Accessories.
Crush Gage on the resin pin indicates when a socket is excessively worn and should be replaced.
Securely retains sockets and accessories to square drive of impact wrench. For 1-1/2" drive impact tools with pin retention hole and groove.
Made of oil resistant material.
RET RING is a trademark of FTL Enterprises, inc.