MB15 Contact Tip M6 140.0059 Conical Gas Nozzle 145.0075 Fit 15AK Co2 MIG MAG Co2 Welding Torch 21pcs Fit 15AK MB15 MIG MAG Co2 Welding Torch 1pcs Conical Nozzle 145.0075 20pcs Contact Tip 0.8 140.0059 ( TIP 1.0 0.9 0.6 optional )