4238-4 - Tang Break Off Tool by Helicoil Stanley Engineered Fastening

The Heli-Coil® 4238-4 is a pneumatic tang break-off tool designed for high-speed, automated removal of driving tangs in production assembly environments. Precision-engineered for 1/4-20 UNC and 1/4-28 UNF tanged wire thread inserts, this power tool utilizes an air-driven impact punch to strike the tang notch with uniform force, snapping driving tangs cleanly without damaging surrounding internal threads. Built with a durable hardened steel punch mechanism and a lightweight aluminum housing, it dramatically accelerates installation throughput, minimizes operator fatigue, and ensures clean, debris-free threads for high-volume manufacturing lines.

Pneumatic Power Operation utilizes compressed air to deliver high-speed, repeatable tang removal for maximum assembly throughput.

Compatible with 1/4" Thread Inserts specifically designed for use with 1/4-20 UNC and 1/4-28 UNF tanged wire insert series.

Hardened Steel Punch Assembly provides long-lasting impact durability and wear resistance in high-duty industrial environments.

Precision Air-Driven Impact applies sharp, concentrated force directly to the tang notch to ensure clean breaks without coil distortion.

Lightweight Ergonomic Housing balances tool weight and reduces operator strain during continuous production operations.