Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - Metric - M18 x 1.5

Baer Heli Coil Tap — the wire thread insert compatible bottoming tap you reach for when damaged threads threaten performance. This Metric tap, sized M18 x 1.5, is purpose-built to produce precise, clean threads that accept Heli-Coil inserts and restore original strength in a variety of materials. Built for durability and repeatable results, it’s a reliable choice for both professional shops and serious DIYers tackling thread repairs and reinforcement projects.

Why this tap stands out

• Bottoming geometry for complete depth: The bottoming design ensures you reach the full thread depth in blind holes, delivering secure engagement for the Heli-Coil insert every time.
• Metric accuracy you can trust: M18 x 1.5 threads align with common automotive and industrial components, making it a practical choice for a wide range of repair tasks.
• Supports thread repair and reinforcement: Ideal for restoring damaged threads and preparing holes that will receive wire thread inserts, helping parts reclaim their service life.
• Premium construction: Engineered for durability and long tool life, designed to withstand repeated tapping without compromising alignment or accuracy.
• Compatible with Heli-Coil inserts: Specifically suited to create the correct profile for robust, load-bearing inserts that withstand vibration and stress in critical applications.

Who benefits most

• Machinists, automotive technicians, and maintenance professionals who routinely repair stripped or damaged threads in engine blocks, housings, and structural components.
• Fabricators and hobbyists working on machinery where reliable, reusable threads are essential for longevity and performance.

Practical guidance for best results

1. Prepare and clean the hole to remove debris and burrs before tapping.
2. Apply cutting lubricant to minimize friction and heat for a smooth cut and precise thread form.
3. Tend the tap straight and steady; cut to the required depth to ensure the insert seats properly.
4. Install the Heli-Coil insert according to its kit instructions, ensuring it sits flush with the surface for optimal load distribution.
5. Verify thread engagement by hand and with a torque test to confirm reliability under load.

Choose Baer Heli Coil Tap when you need predictable, professional-grade results that restore exact thread dimensions, extend the life of critical components, and support durable, serviceable assemblies. It’s the trusted tool for precise thread creation, reinforced fastening, and dependable repairs in metalworking and mechanical applications.