Milwaukee M18 FUEL Brushless 1/2 In. Compact Cordless Impact Wrench with Friction Ring (Tool Only) - Town Hardware & General Store
3/8" Impact Retaining Ring Fits Milwaukee 3/8 Impact Friction Ring Clip With O-Ring,Impact Hog Ring Replacement For Milwaukee Type Wrenches, Impact Wrench Tool Parts(4 Sets) - Amazon.com
Milwaukee, M18 FUEL, MT 1/2" Impact Wrench Kit, Friction Ring - Augusta Cooperative Farm Bureau, Inc.