Miller AccuLock S Consumables Kit 1880278

For use with MDX-250 / MDX-250 EZ-Select MIG guns – Optimized Wire FeedingAccuLock consumables system centers and locks the liner into position at the front and back of the gun for a flawless wire feed path from the feeder to the contact tip. Reduces burnbacks, birdnesting and erratic arc. Cooling Tail – Contact tip tail is cooled inside the diffuser by shielding gas. Tapered Connection – Taper connection locks the contact tip to the diffuser for excellent electrical conductivity. Quick Tip Replacement – Coarse thread speeds contact tip replacement. Stays Tight – Threaded nozzle stays tight during use / cleaning due to the steel retaining ring on the diffuser.