1/2" Impact Wrench Socket Retainer rings with O-ring Replace the snap ring Nice material: O-ring is made of quality rubber, reliable and not easy to break, and the retaining ring is made of carbon steel, sturdy and stubborn, resistant to wear and has a long use time 1/2" Impact Wrench Socket Retainer rings with O-ring This kit will fit most major brands of electric and pneumatic wrenches with ½” square drive. Impact Wrench Tool Parts and Accessories Simple installation: install the O rubber ring first, then install the impact wrench socket retainer ring, and clamp it to a suitable size with pliers; The function of the rubber ring is to support the retainer ring O-ring Square Drive Socket Retainer Ring Using tips: the retainer retaining ring is a consumable part; After a long period of using, the sleeve will not be tightly clamped; At this time, please replace the refresh wrench ring