Tweco Professional Heavy-Duty Contact Tip, 0.064" Tip Size, 122 DHP Copper Alloy, 14 Series, 0.052" Wire, 400 amp

Used in heavy-duty welding application up to 400 amp Excellent electrical properties Inside diameter tolerance is held to +/-.003 Inch Machined from a copper alloy tubing providing a consistent and smooth inside diameter surface Contact tips manufactured from extruded or gun-drilled copper alloy Contact tips in either threaded and/or twist lock eliminator style contact tips for eliminator style gas diffuser Threaded style contact tip to ensure proper contact with a gas diffuser when installed to the mig gun Easy identification - each contact tip is marked showing part no and wire diameter Slip-on or thread-on nozzle styles with a choice of diameter bore sizes Twist-it and forget it-twist it and it locks in place, no threads to worry about Increased surface contact between contact tip/diffuser for better electrical conductivity, GMAW process Double tip life-twist it quarter turn clockwise When tip wear point is reached after use, twist it half turn counter-clockwise to expose a new wear point this doubles the life of the tip