Armstrong 21-964 Retaining Ring

Armstrong Retaining Ring, 3/4 in Drive, For Use With: Impact Socket, Polyurethane, 1-7/16 in Dia

• The Ret Ring is a tool accessory used to attached large impact sockets to the square drive anvil on high speed impact wrenches
• One piece designed replaces separate pins and o-rings
• Molded in polyurethane plastic with a hardened resin insert that securely holds the socket in place when operating impact wrenches that can reach free speeds in excess of 5000 rpm