Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - UNC - 1 x 8

The Baer Heli Coil Tap is the dedicated tool for restoring and reinforcing threads with confidence. Engineered for durability and built to last, this Bottoming Tap (STI) in UNC 1 x 8 is purpose‑made to work with Heli‑Coil wire thread inserts, delivering clean, accurate threads every time your project demands it.

• Premium construction for repeated use. Crafted in high‑speed steel (HSS‑G) to resist wear and maintain precise thread geometry through many tapping cycles.
• Bottoming tap design for full depth. Tailored to reach the bottom of the hole, ensuring complete thread engagement even in blind openings, so inserts seat perfectly and stay secure under load.
• UNC 1 x 8 thread compatibility. Precisely matched to standard coarse threads, providing reliable uptake for fasteners used in automotive, industrial, and general machine work.
• Optimized for heli‑coil inserts. The tap geometry creates clean, square threads that align perfectly with coil inserts, resulting in durable repairs that resist stripping and fatigue.
• Versatile across metals and applications. Ideal for repairing damaged holes in steel, aluminum, and cast components, as well as reinforcing critical threaded joints in maintenance and retrofit tasks.

Why this tap matters in real-world work

• When a hole has been damaged or stripped, a reliable coil insert joined with the Baer Heli Coil Tap restores original strength without oversized repairs or replacement parts.
• For components that endure vibration or heavy use, reinforced threads distribute load more evenly, reducing the risk of future thread failure.
• In field repairs or shop scenarios, this tool helps you complete maintenance quickly with repeatable results, keeping downtime to a minimum.

Practical tips for best results

• Use appropriate cutting fluid to extend tap life and improve chip clearance during tapping.
• Maintain perpendicular alignment to the workpiece and avoid over‑reaching depth to prevent thread damage.
• Clear chips thoroughly after tapping before installing the helicoil insert to ensure a clean seating surface.
• Pair with the correct Heli‑Coil insert size for your UNC 1 x 8 hole to achieve optimal grip and load distribution.