Repair Kits generally consist of wear parts such as o-rings, springs & veins. For Use With 1/2" Impact Wrench 5540003221JP O-Ring OR00400100 O-Ring OR05000105 (6) Rotor Blades 43-403316 O-Ring OR03805200 Steel Ball 5K-3011B25 O-Ring OR04800100 Gasket 43-403735 O-Ring 40305 Retaining Ring 40303 O-Ring 72023 Valve Spring 43-403647