Features: 1.This set especially designed for MB15/15AK MIG welding torch. 2.Electrode clip is the copper material, a very small amount of impurities, especially phosphorus, arsenic, aluminum, etc., will greatly reduce the copper conductivity. 3.Has excellent thermal conductivity, ductility and corrosion resistance, very practical. 4.Package including 10pcs contact tip, 4pcs tips holder diffuser, 2pcs connecting rod, torch neck, nozzle key, everything you need is included. 5.With easy installation, and there is no need to waste your times, very convenient. Specification: Condition: 100% Brand New Item Type: Burner Accessory Set Color: Silver Material: Brass The Inner Diameter of the Contact Tip: Approx. 12mm/0.5in The Total Height of the Upper Part and the Burner Side Hole: Approx. 54mm/2.1in Inner Diameter of Contact Tip: Approx. 0.8mm/0.03in Applicable to Burner Model: For MB15/15AK MIG welding torch