Baer Heli Coil Tap - Wire Thread Insert - Spiral Point Tap (STI) - Metric - M3.5 x 0.6

The Baer Heli Coil Tap is the precise tapping tool you need to create and renew threads for Heli-Coil wire thread inserts. Sized for metric M3.5 x 0.6 applications, this spiral point tap (STI) delivers clean, true threads that accept inserts with dependable grip and torque resistance in a wide range of metals and thicknesses.

Why this tap stands out in demanding repair and reinforcement work:

• Metric accuracy for insert compatibility: specifically engineered for M3.5 x 0.6 threads, ensuring a perfect match with standard helicoil systems and providing reliable performance where original threads are worn or stripped.
• Spiral point (STI) geometry: designed to efficiently evacuate chips while cutting, reducing the risk of cross-threading and creating straight, concentric threads that the insert can bite into securely.
• Durable, long-life construction: crafted from hardened tooling steel to withstand repeated use in metalworking environments, from automotive repair to electronics enclosures and hobbyist projects.
• Consistent results across materials: well-suited for repairing or reinforcing threads in common base materials like aluminum and steel, delivering repeatable performance without over-tapping or under-cutting.
• Professional-grade reliability: when used with the corresponding Heli-Coil inserts, it helps restore strain-tielded fastener holes to near-original strength, enabling safe, repeatable disassembly and reassembly in critical assemblies.

Ideal use scenarios include repairing stripped passenger-car housings, restoring threaded holes in aluminum extrusion parts, servicing enclosures for electronic gear, and backfilling small fastener cavities in machinery where reliable thread engagement is essential. It’s the tool you reach for when you need to bring worn threads back to life and create a robust foundation for high-torque fasteners.

How to get the best results with this tap:

• Prepare the hole with a clean, deburred entry to ensure proper alignment before tapping.
• Use a light oil or tapping fluid to reduce friction and extend tool life during cutting.
• Begin with a steady, straight approach, applying even pressure; advance the tap gradually and back it off periodically to break and evacuate chips.
• Inspect the cut threads for full engagement and then install the corresponding Heli-Coil insert per standard helicoil installation guidelines.
• Clean the hole after tapping and store the tool in a protected area to preserve edge quality for future use.

What you gain with the Baer Heli Coil Tap: a precise, dependable path to strong, repair-friendly threads that extend the life of fasteners and the parts they serve. It’s a focused, purpose-built solution for professionals and serious hobbyists who demand durable threads, consistent results, and compatibility with standard wire thread inserts.