Baer Heli Coil Tap – Bottoming Tap (STI) for M27 x 3 Metric Threads

When you need dependable thread repairs and reinforced engagement, this Baer Heli Coil Tap is your go-to tool. Specifically designed for use with wire thread inserts (Heli‑Coil), it delivers clean, precise threads every time and is engineered to withstand the demands of professional repair work. The bottoming tap (STI) profile ensures threads extend fully to the bottom of blind holes, locking in the insert and maximizing load transfer in critical applications.

• Bottoming tap (STI) design: forms threads all the way to the bottom of the hole, ensuring maximum insert engagement and durable, vibration‑resistant threads.
• Metric compatibility: M27 x 3 thread pitch, ideal for larger repair or reinforcement projects where strong, reliable threads are essential.
• Precision geometry: engineered for smooth cutting, minimal torque, and excellent chip evacuation to reduce binding in tight holes.
• Robust shank and construction: built to withstand repeated use in demanding environments while maintaining consistent thread quality.
• Optimized for Heli‑Coil inserts: ensures the coil seats flush and locks in place under load, extending component life.
• Versatile for professional repairs: ideal for automotive, machining, and industrial equipment where threaded holes endure frequent cycles and stress.

Typical use cases include repairing stripped or damaged M27 x 3 threads in engine blocks, cylinder heads, transmission housings, and other high‑stress housings. It’s also a reliable choice for reinforcing critical holes in chassis, tooling, and machine bases where ultimate thread integrity matters.

• How to use (quick guidance): drill the correct pilot hole for M27 x 3, apply a appropriate cutting fluid, keep the tap square to the hole, and advance slowly to form the threads. After tapping, clean the chamber and install the Heli‑Coil insert for a solid, long‑lasting repair.
• Pro tips: retreat the tap regularly to break and clear chips, and verify alignment with a test insert before final assembly to ensure optimal engagement.

Why choose Baer for your tapping needs? Baer tools are built for precision, durability, and consistent results in professional repair work. This Heli Coil Tap delivers reliable performance when you’re rebuilding threads and extending component life in demanding environments.