N-M5818C - Miller AccuLock MDX MIG Nozzle, 5/8 in Bore, 1/8 in Recess, Copper (2-Pack)

Upgrade Your Weld with Miller AccuLock™ MDX™ Nozzles

Frustrated with MIG nozzles that wobble, fall off, or let your contact tip burn back? The Miller AccuLock™ MDX™ N-M5818C nozzle is designed to solve the most common headaches welders face with standard MIG guns. Built specifically for your Miller MDX-250 or MDX-250 EZ-Select™ gun, this nozzle is part of the revolutionary AccuLock system that keeps your wire feeding smoothly and your arc stable, so you can focus on laying down perfect beads.

Stays Tight, Every Time
One of the biggest annoyances in welding is a nozzle that gets loose as it heats up. The N-M5818C features a robust thread-on design that locks securely onto your diffuser. Thanks to a specialized steel retaining ring, this nozzle stays put even during long, hot welds. You won't have to stop every ten minutes to crank it back down or fish it out of a puddle.

Optimized for Performance
This nozzle isn't just a gas cup; it's an alignment tool. When you thread it on, it helps center the liner within the gun, creating a straight, flawless path for your welding wire. This reduces drag and prevents the erratic feeding that causes burn-back and bird-nesting. The 5/8-inch bore gives you excellent gas coverage for a wide range of joints, while the 1/8-inch tip recess protects your contact tip from spatter and accidental contact with the work surface.

Built for the Shop
Made from durable copper, these nozzles handle the heat of 250-amp welding without deforming. They are easy to clean and built to last. This pack includes two nozzles, giving you a backup for when you need it most. Whether you are fabricating in a garage or working on a production line, the AccuLock MDX nozzle is a small upgrade that makes a massive difference in your daily welding experience.