Contact Tip, Fastip .312" OD .035-.040" AL Wire | MIL206187

The Miller Electric 206187 FasTip Contact Tip features a .312" (5/16") Outside Diameter and is precision-bored to accommodate .035" to .040" aluminum wire. Unlike tips designed for steel, this aluminum-specific model has an oversized internal bore to allow for the thermal expansion of the wire. This design prevents the wire from "seizing" or dragging, which is the leading cause of erratic arcs and birdnesting in push-pull and spool gun systems.

• Optimized for Aluminum Expansion: Specifically sized for .035" and .040" aluminum alloys, ensuring smooth wire travel even as the tip reaches high operating temperatures.
• FasTip™ Quick-Lock System: Features a threadless design that allows for instant, tool-free replacement. This maximizes uptime and ensures a perfectly centered electrical connection every time.
• High-Conductivity Copper: Manufactured from premium-grade copper to provide maximum electrical contact and rapid heat dissipation, significantly reducing the risk of "burn-back."
• Industrial Durability: Built to withstand the high-amperage demands of Spoolmatic® and XR™ push-pull systems, making it ideal for marine, trailer, and sign fabrication.
• Polished Internal Bore: The smooth interior surface minimizes friction and wire "shaving," which helps keep your gun liner and gas diffuser clean for longer.