255716 - Miller 4-Inch 180-Degree Air-Cooled Head Tube for Spoolmatic Pro

Maximize Your Reach and Comfort with the Miller 180-Degree Head Tube

Welding isn't just about the arc; it's about getting your gun into the right spot comfortably. The Miller 255716 Head Tube Assembly is the standard 180-degree (straight) barrel for your Spoolmatic Pro and XR-Pro series guns, designed to make your aluminum welding jobs smoother and more adaptable. Whether you are fabricating boat hulls, trailers, or signage, having the right head angle can mean the difference between a perfect bead and a struggle. This 4-inch straight tube is ideal for reaching into deep channels or welding in flat positions where a curved neck might obstruct your view or force an awkward hand position.

One of the standout features of this head tube is how incredibly easy it is to use. We know that time spent wrestling with tools is time not spent welding. That's why Miller designed this head tube to be completely tool-less. You can swap it out or adjust it in seconds. Need to change your hand position to reduce wrist strain? The head tube is fully rotatable. You can spin it 360 degrees to find the perfect angle for your trigger hand, all while the tube seats itself securely to prevent shielding gas leaks. This self-seating feature ensures you get consistent gas coverage, which is absolutely critical when welding aluminum to avoid porosity.

This genuine Miller accessory is built to last and designed specifically for the demands of push-pull and spool gun welding. It fits seamlessly with the Miller Spoolmatic Pro, XR-Pistol-Pro, and XR-Aluma-Pro air-cooled guns. By using the correct head tube, you ensure that your wire feeds smoothly through the liner and contact tip, reducing the frustration of burn-backs or erratic arcs. If you are looking to expand the capabilities of your Miller Pro gun or simply need to replace a worn-out barrel, the 255716 is the reliable, high-quality solution you need to keep your production line moving.