Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - Metric - M33 x 2

The Baer Heli Coil Tap is your go-to solution for precise, durable thread repairs and reinforcements. Designed as a dedicated bottoming tap for metric threads, it enables clean, full-depth cuts that align perfectly with wire thread inserts (Heli-Coil) to restore original strength in damaged holes. This is the essential tool you reach for when you need reliable, reusable threads in harsh or high‑load environments.

Key advantages at a glance

• Bottoming Tap (STI) design delivers full-thread engagement to the bottom of the hole, making it ideal for blind holes and for installing inserts that require maximum thread contact.
• Metric M33 x 2 specification ensures compatibility with standard M33 helicoil inserts and automotive, industrial, and machinery components.
• Durable construction built to withstand repeated tapping in tougher metals, helping you maintain consistent thread quality across multiple repairs.
• Heli-Coil compatibility creates a robust thread path that accommodates inserts securely, delivering restored load-bearing capacity and resistance to vibration.
• Efficient workflow reduces the risk of cross-threading and thread damage, speeding up repairs and minimizing downtime in maintenance cycles.

Who benefits most

• Automotive technicians repairing stripped or damaged threads in engine blocks, cylinder heads, and housings.
• Industrial mechanics restoring critical bolt holes in frames, housings, and structural components.
• Machinists and fabricators prepping jigs, fixtures, or prototypes that require dependable, long-lasting threads.

How this tap solves real problems

• Eliminates the need to replace whole components by restoring thread integrity, saving time and material costs.
• Provides a precise, repeatable cut to accept helicoil inserts, ensuring consistent insert engagement and performance under load.
• Supports high-torque applications and dynamic loads by maintaining secure thread engagement after repair.

Practical tips for best results

• Use the correct drill size and apply a light, steady cutting action with appropriate cutting fluid to maximize tool life.
• Align carefully to prevent thread misalignment and to ensure smooth insertion of the helicoil insert.
• Deburr the hole edges before tapping and clean chips frequently to maintain thread accuracy.
• Store with protective caps and inspect the tap for wear after each use to maintain consistent performance.