MIG Copper Contact Tip M10*35mm XL140.1544 for Binzel MIG Welding Torch RB61GD/RB601D Weight(Gram): Package QTY: 20pcs Part No. Description XL140.1542 Contact Tip E-CU M10*35*1.0mm XL140.1543 Contact Tip E-CU M10*35*1.2mm XL140.1544 Contact Tip E-CU M10*35*1.6mm XL140.3520 Contact Tip E-CU M10*35*2.0mm XL140.3524 Contact Tip E-CU M10*35*2.4mm XL140.3528 Contact Tip E-CU M10*35*2.8mm XL140.0348 Contact Tip CuCrZr M10*35*1.0mm XL140.0481 Contact Tip CuCrZr M10*35*1.2mm XL140.0547 Contact Tip CuCrZr M10*35*1.4mm XL140.0616 Contact Tip CuCrZr M10*35*1.6mm XL140.0665 Contact Tip CuCrZr M10*35*2.0mm XL140.0698 Contact Tip CuCrZr M10*35*2.4mm XL140.0712 Contact Tip CuCrZr M10*35*2.8mm XL140.0734 Contact Tip CuCrZr M10*35*3.2mm Features: 1.High quality material: CU-E or CUCRZR 2.Provide good thermal and electrical conductivity to allow consistent current transfer to the wire 3.Optional bore size, suitable for your welding wire diameter 4..Durable and have a long service time