• Fits all Williams 1" 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" drive impact tools with pin retention hole and groove
• Made of oil resistant material
• RET RING® is a trademark of FTL Enterprises, Inc.