MB15 Contact Tips produced from CuCrZr - Heavy Duty Version From Binzel
These heavy duty tips may cost you slightly more than the standard copper contact tips but they should save you money over their life with improved current carrying capacity offering improved tip heat conductivity that also helps to offer a more constant feed on the wire with less risk of the hole size closing down on the wire.
These genuine Binzel contact tips are designed to be used on any MB15 type torch but for best results we always recommend using a genuine Binzel MIG torch too.