Best Welds 900-34A Tweco Style 4 Slide On MIG Gun Insulator 400 Amp

Consumable kit for 400 amp Tweco-pattern MIG guns, supplying the contact tips, nozzles, and diffusers that wear out on higher-current welding. A matched kit keeps replacements on hand for heavier...

Gas diffuser built to the Tweco pattern, threading into the MIG gun head to meter shielding gas evenly into the nozzle while seating the contact tip. A worn diffuser leaks gas and loosens the tip, so...

Consumable kit in the Tweco pattern for 250 amp MIG guns, bundling the contact tips, nozzles, and diffusers needed to keep a gun running through production. Stocking a matched kit cuts downtime when...

Gas Diffuser, Brass, 250 A, For Best Welds, Tweco Style No 2 MIG Guns

Copper MIG nozzle in the Tweco Style 4 short-stop pattern, setting a shorter standoff for welding in confined joints. Copper sheds arc heat during sustained operation while channeling shielding gas...