135424 - Miller 135424 Spoolmatic Contact Tip .047 (Pack of 10)

Reliable Feeding for Aluminum Welding

If you are running a Miller Spoolmatic 30A or an XR push-pull gun, you know that aluminum wire can be finicky. The difference between a perfect stack of dimes and a frustrating bird-nest often comes down to your consumables. The Miller 135424 Contact Tip is the standard, go-to tip for running .047" (3/64") aluminum wire in these guns. Designed specifically for the unique properties of aluminum, this tip allows the wire to feed smoothly without snagging, even as the gun heats up during long welds.

These tips feature a non-threaded, drop-in design that works with your existing collet assembly. This makes changing them out relatively quick, although you don't want to be changing them constantly. By using genuine Miller tips, you ensure the bore is perfectly smooth and sized correctly to prevent micro-arcing inside the tip, which causes burnbacks and ruins your workflow. When welding aluminum, the wire expands more than steel; these tips are engineered with that expansion in mind, preventing the "stick-slip" friction that leads to an unstable arc.

Whether you are fabricating boat hulls, repairing trailers, or doing custom aluminum fabrication, keeping a fresh pack of 135424 tips in your toolbox is mandatory. A worn tip can look fine on the outside but have an ovaled-out bore that destroys your aim and arc control. Swap in a fresh Miller 135424 to restore that crisp, buzzing arc you need for professional results. These tips are sold in packs, so you are always ready for the next job.