Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - UNF - No. 8 x 36

The Baer Heli Coil Tap is the essential tool for impeccable thread repairs and reinforcements, specifically engineered to work with Heli-Coil wire thread inserts. Built for durability and precision, this Bottoming Tap (STI) handles UNF threads No. 8 x 36 with clean, full-depth cuts that you can trust in critical applications.

• Bottoming design for full-depth threads: reaches to the bottom of the threaded hole, ensuring a solid foundation for inserts and maximum holding power.
• UNF No. 8 x 36 compatibility: precisely matched to standard UNF thread specifications, delivering reliable engagement with Heli-Coil systems.
• HSSG construction: high-speed steel offered in a heat-treated grade built to withstand repeated use in steel, castings, and challenging alloys.
• Precision geometry: chamfered lead-in and optimized flute act like a guide, minimizing cross-threading and producing clean, burr-free threads.
• Efficient debris control: designed to keep chips controlled and the hole clear, so inserts seat accurately and threads stay true.
• Professional, field-ready reliability: a robust tapping solution that integrates smoothly with standard tap handles, ideal for shop floors and repair benches alike.

Use cases span automotive, aerospace, machinery, and general repair work—whether you’re restoring damaged threads in engine blocks, transmission housings, or aluminum housings, the Baer Heli Coil Tap delivers durable, repeatable results. By creating perfectly matched threads, it sets the stage for reliable Heli-Coil inserts that restore original strength and extend the life of components under demanding service conditions.

Choosing this tap means prioritizing precision, durability, and compatibility with popular repair ecosystems. It’s the trusted, professional-grade solution for technicians who demand consistent performance and long-lasting thread integrity in UNF No. 8 x 36 holes.