Baer Heli Coil Tap - Wire Thread Insert - Spiral Flute Tap (STI) - Metric - M5 x 0.8

The Baer Heli Coil Tap is your go-to tool for restoring and reinforcing worn threads with confidence. Engineered for durability and built to perform in demanding environments, this Spiral Flute Tap (STI) in metric size M5 x 0.8 delivers clean, precise threads ready for reliable fastener engagement or for accepting a Heli-Coil insert.

Why this Heli Coil Tap stands out

• Precision thread formation—creates exact M5 x 0.8 internal threads that match standard inserts and fasteners, ensuring perfect mating every time.
• Spiral flute design—efficient chip evacuation and smoother cutting, reducing the risk of cross-threading and giving you a consistent finish in a variety of materials.
• Durable construction—crafted for longevity in tough metals, so you can tackle multiple repairs without frequent tool changes.
• Versatile application—ideal for repairing stripped holes, reinforcing critical load-bearing threads, and preparing holes for reliable insert installation in automotive, machinery, and fabrication projects.
• Ready for inserts or direct fasteners—produces a robust thread profile that accommodates Heli-Coil inserts or standard M5 fasteners, improving torque transfer and service life.

Ideal use cases

Use this tap when you encounter damaged or stripped M5 x 0.8 threaded holes in aluminum, steel, or other common engineering materials. It shines in repair work on engine components, machinery housings, brackets, and assemblies where strong, repeatable threads are essential. If you’re restoring worn threads to original specifications or converting a damaged section to accept a durable insert, this tap is designed to deliver dependable results.

Practical tips for best results

• Choose the correct tap depth and always back off to clear chips to prevent binding.
• Use light cutting oil or penetrating lubricant to reduce friction and extend tool life.
• Align the tap carefully with the hole to maintain thread accuracy and prevent cross-threading.
• Pair with compatible Heli-Coil inserts for reinforced, high-load applications and extended service life.

Who benefits most

This Heli Coil Tap is perfect for professional machinists, automotive technicians, and serious DIYers who demand dependable thread repairs and durable reinforcements. If you routinely repair or recondition threaded holes, this tool helps you achieve professional-grade results with every cut.

Equip your toolkit with the Baer Heli Coil Tap in metric M5 x 0.8 and experience precise, durable thread restoration that holds up under real-world use.