Tweco® MPC Connectors provide a positive cam action, which optimizes interface between connector halves. Equipped with head and oil resistant covers. Furnished with zinc plated cover and ball-point cable screws. Interchangeable with older Tweco MBP Connectors. The Whip Cable Connector is used when down sizing cable to an electrode holder. This kit is complete connection: 3/0 or 4/0. Cable Capacity | 2 Female Double Ball Point