401-42-50 - Tregaskiss 401-42-50 Tough Lock Nozzle, 1/2" Bore, 1/8" Recess, Brass (10-Pack)

Reliable Performance with Tregaskiss Tough Lock Nozzles

When you are under the hood, the last thing you want to worry about is your consumables failing mid-bead. The Tregaskiss 401-42-50 Tough Lock Nozzle is built to keep you welding longer with less downtime. Designed for the popular Tregaskiss T-Gun series, this nozzle features a 1/2-inch bore that delivers excellent gas coverage for most standard MIG applications. Whether you are welding mild steel in a fabrication shop or performing repairs on heavy equipment, this nozzle provides the consistency you need to lay down smooth, porosity-free welds.

The 401-42-50 is made from durable brass, which is a favorite among welders for its ability to resist spatter build-up. Unlike some copper nozzles that can grab onto spatter, the smooth finish and brass material of this nozzle make it easier to clean, often requiring just a quick tap or a swipe with pliers to clear. The bottleneck shape is another huge plus, tapering down to give you a better view of the weld puddle so you can stay right in the joint without guessing where your wire is aiming. The 0.938-inch outside diameter is slim enough to get into tight corners without sacrificing durability.

One of the standout features is the 1/8-inch tip recess. By keeping the contact tip slightly recessed inside the nozzle, it stays protected from the intense heat of the arc and accidental contact with the work surface. This means you burn through fewer tips and spend less time swapping out parts. Plus, the Tough Lock slip-on design is a game-changer for speed. When it is finally time to replace the nozzle, you just pull the old one off and slide the new one on—no threading, no seizing, and no wasted time.

Sold in a convenient 10-pack, these nozzles ensure you have plenty of backups for the week ahead. Using genuine Tregaskiss parts means you get the fit and performance the manufacturer intended, helping your gun run cooler and your welds look better. Upgrade your setup with the 401-42-50 and experience the difference that a quality nozzle makes in your daily welding routine.