Bernard announced that its AccuLock S consumables system now includes Lincoln, Tweco #4 and Tweco #5 power pins, in addition to the Miller power pins already available. All power pins are configurable options for the company’s BTB semi-automatic air-cooled MIG guns using the online configurator. The consumable system addresses errors in liner trimming by locking and concentrically aligning the liner between the contact tip and power pin. Installing and replacing the liner is an error-proof process that requires no measuring. Users simply load the liner and trim it flush with the power pin.