Classic Numbered Series MIG guns from Tweco, an ESAB brand, are now available with Velocity consumables. These consumables feature gas ported contact tips that keep the tip 30 percent cooler. They have threadless, drop-in style contact tips and integrate the contact tip seating area directly into the conductor tube. The shielding gas flows from the conductor tube through four ports machined into the base of the contact tip. This simplified design eliminates the gas diffuser and enables the shielding gas to better cool the contact tip.