Baer Heli Coil Tap — M36 x 2 Bottoming Tap for Precise, Durable Thread Repairs

The Baer Heli Coil Tap is the essential tool when you need flawless thread repairs and reliable reinforcements using Heli-Coil wire thread inserts. This metric M36 x 2 bottoming tap (STI) is engineered to cut clean, true threads all the way to the bottom of blind holes, ensuring a perfect seat for the insert and maximum clamp load every time.

Built for longevity, this tap combines robust construction with precision-ground geometry. The shank is designed for steady guidance in tight or recessed cavities, while the flute geometry minimizes chatter and resists wear during repeated use in demanding materials—from tough steels to aluminum housings. When reliability matters, you want a tap that maintains accuracy under load, and that’s what this Baer tap delivers.

Why this tap stands out

• Bottoming geometry for full-depth engagement: reach the deepest portions of blind holes so the Heli-Coil insert seats squarely and performs as intended.
• Metric precision — M36 x 2: a robust, high-strength thread form suitable for heavy-duty fasteners and critical assemblies.
• Designed for Heli-Coil relays: pairs seamlessly with wire thread inserts to restore original thread strength without oversizing the hole.
• Durable, shop-grade steel construction: built to withstand repeated installations in challenging materials while maintaining tolerance.
• Consistent tapping performance: stable guidance and smooth cutting help minimize thread damage and improve insert reliability.

Ideal applications

Perfect for automotive and motorcycle maintenance, machinery repair, and industrial equipment where worn or damaged threads threaten performance. Use it to prepare holes for helicoil inserts in engine blocks, transmission housings, brackets, and other critical components that demand strong, repeatable threads.

Pro tips for best results

• Prepare the hole with the correct pilot size for the insert you’re installing, and deburr thoroughly before tapping.
• Apply a light cutting fluid or oil to reduce friction and extend tool life.
• Maintain steady, straight feeding to avoid cross-threading and ensure true thread form.
• After tapping, clean the hole and chase the threads to remove chips before inserting the helicoil.
• Verify thread fit with a corresponding bolt or a go/no-go thread gauge to confirm proper acceptance of the insert.