Baer Heli Coil Tap - Wire Thread Insert - Spiral Point Tap (STI) - Metric - M12 x 1.75

Baer Heli Coil Tap – Precision Spiral Point Tap for Metric M12 x 1.75 Internal Threads

When a worn or damaged internal thread threatens the integrity of a component, you need a tool that restores strength without drama. The Baer Heli Coil Tap is crafted for exacting repairs and reliable reinforcements using Heli-Coil style wire thread inserts. Designed for metric M12 x 1.75 holes, this Spiral Point Tap (STI) cuts clean, accurate threads that perfectly cradle a coil insert for long-lasting performance in steel, aluminum, and other common metals.

Why this tap stands out

• Specifically sized for M12 x 1.75 internal threads, ensuring a precise fit for standard coil inserts and broad compatibility with common repair kits.
• Spiral Point (STI) geometry clears chips efficiently and directs debris forward, reducing friction and the risk of cross-threading during tapping.
• Durable tool steel construction built to withstand repeated tapping without losing edge, helping you complete repairs faster with fewer reworks.
• Optimized for thread repair and reinforcement when paired with wire thread inserts, delivering renewed rigidity and load-bearing capability in damaged holes.
• Versatile for workshop and field use ideal for automotive, machinery, and equipment maintenance where threaded holes underpin critical assemblies.

What problems it solves

Old, stripped, or oversized threads can render a part unusable. The Baer Heli Coil Tap enables you to:

• Restore damaged M12 x 1.75 holes to their original strength, allowing full insert engagement.
• Prevent progressive wear in high-stress threaded joints by providing a fresh, precisely cut thread profile for inserts.
• Eliminate the need for oversized repairs or complete part replacement by reinstating a robust, reusable thread.

Ideal use scenarios

• Repairing stripped bolt holes in engine blocks, transmission housings, or structural brackets.
• Reconditioning threaded holes in machinery housings, motors, and equipment frames where vibration occurs.
• Preparation of holes before installing coil inserts to restore original torque-together strength.
• Quick, field-ready maintenance on service vehicles and industrial equipment.

How it helps you work smarter

With the Baer Heli Coil Tap, you gain predictable, repeatable results:

• Faster repairs thanks to efficient chip clearing and clean thread formation in a single pass.
• Longer-lasting threaded joints when paired with the correct coil insert, improving service intervals and reducing downtime.
• Reduced rework by achieving the correct thread pitch and depth the first time.
• Compatibility with standard repair ecosystems so you can integrate this tap into existing Heli-Coil or wire insert workflows without friction.

Practical tips for best results

To maximize performance and thread life, consider these guidelines:

• Use a proper cutting fluid or light oil to minimize heat and extend tool life during tapping.
• Align the tap carefully with the hole to prevent cross-threading—hand-guided initial alignment before gradual, steady pressure.
• Tap to the recommended depth for your insert size; avoid over-tapping, which can weaken the surrounding material.
• Pair the tap with the appropriate coil insert installation technique to ensure the insert seats flush and remains secure under load.
• Inspect the hole after tapping for burrs; lightly deburr if needed to avoid insert seating issues.

Product details at a glance

• Spiral Point Tap (STI)
• Material: High-quality tool steel designed for durability in metal tapping
• Thread specification: Metric M12 x 1.75
• Purpose: Internal thread creation for Heli-Coil style wire inserts and reinforcement
• Application: Repairing and strengthening damaged or worn threaded holes in metal components

Engineered for technicians, machinists, and DIY enthusiasts who demand precise, dependable thread repairs, the Baer Heli Coil Tap helps you extend the life of critical components, maintain equipment uptime, and achieve professional-grade results with every job. When accuracy matters and a robust, reusable thread is non-negotiable, this STI tap is the tool you reach for first.