Facom Ratchet Maintenance Kit - 3/8" Drive (J.161B-KIT) - new master parts kit available for most Facom and USAG 3/8" drive round head ratchets (Facom - J.161, J.161B, J.153, J.155A, J.157A, J.158A and J.161E....NOT for the J.161L)(USAG-237A series)(Mac XRR10PA, XRR11FPA)(Proto J5252F, J5253F, J5252FBL, J5254F, J5257F). This kit replaces the older J.161-KIT and is slightly cheaper as it does not include the chrome ring cap for the older ratchets. That cap is available with repair kit J.161C. The chrome cap is not used on the newer Facom/USAG high performance ratchets.