Smith MC12-4 Medium-Duty Acetylene Cutting Tip, Size 4

Reliable Cutting with the Smith MC12-4 Acetylene Tip

Achieve clean, professional cuts on thicker steel with the Smith MC12-4 Acetylene Cutting Tip. Designed for welders who demand both performance and safety, this Size 4 tip is the heavy-hitter of the medium-duty line, offering the ability to slice through metal up to 4 inches thick. Whether you are working on structural repairs, farm equipment, or general fabrication, the MC12-4 delivers the heat and precision you need to get the job done right.

Safety First Design
One of the standout features of Smith cutting tips is the In-Tip Gas Mixing technology. By mixing the oxygen and acetylene inside the tip rather than in the torch handle, Smith significantly reduces the risk of dangerous flashbacks. This design isolates the fuel and oxygen supplies until the last possible moment, protecting both the operator and the equipment. Additionally, the concave tip end helps prevent backfires and resists flameout, ensuring a stable flame even in less-than-ideal conditions.

Tool-Free Installation
Forget fumbling for a wrench every time you need to change a tip. The MC12-4 features Smith's convenient Slip-In design. You can simply insert the tip and tighten it by hand to form a perfect, leak-proof seal. This not only speeds up your workflow but also protects the torch head from the wear and tear associated with wrench-tightened tips. The recessed seats are designed to withstand high heat without deforming, ensuring a long service life.

Superior Construction
Built from high-grade copper and fully swaged, this tip offers incredibly smooth gas passages. This smoothness minimizes turbulence in the gas flow, leading to a more stable preheat flame and a cleaner cutting stream. The result is less slag build-up on your workpiece and less time spent grinding edges later. Compatible with popular Smith attachments like the MC509 and AC309, the MC12-4 is an essential addition to your medium-duty oxy-fuel kit.