The Bernard Acculock S Consumables System Expansion includes Lincoln, Tweco #4, and Tweco #5 power pins. These are in addition to the power pins for Miller equipment previously available. All power pins are configurable options for the company’s BTB semi-automatic air-cooled MIG guns using the online configurator. The AccuLock S consumables system requires all AccuLock components: contact tip, diffuser, nozzle, liner, neck insulator, power pin, and power pin cap.