VELOCITY2 Classic No. 4 0.035″ – 0.045″ 400 AMP MIG Guns incorporates Velocity2 Consumables with new ground breaking innovation inspired by welders for welders. 400 AMP 60% Duty cycle MIG gun available with Tweco, Miller, Lincoln and Euro-Kwik style rear connectors. Suitable for heavy duty fabrication. Air-cooled. KEY FEATURES The industry standard for over 40 years Solid copper conductor path with fewer connections for optimized electrical surface contact Fewer consumables parts means less complexity and lower cost of ownership Gas ported velocity2 contact tips stay cooler and last longer Easy to use velocity2 tips eliminates threads and requires no tools Tips can be rotated to prolong life requiring fewer changes Excellent wire feed ability with centered liner with the conduit liner fitting inside the tip Superior welding performance from a smoother, more stable arc Large copper to copper surface contact for superior thermal and electrical efficiency Proven contact tip life improvements with short arc solid wire 2 to 3 times life, spray transfer 4 to 5 times life and gas shielded flux core 8 to 10 times life Applications Ship and Offshore Yards Repair and Maintenance Steel Industry Industrial and General Fabrication Automotive Notes Rated at 60% duty cycle