The Baer Heli Coil Tap is the precision tool you reach for when you need dependable thread repairs and reinforced assemblies. This Bottoming Tap (STI) is specifically designed for metric M18 x 2 holes, delivering clean, true threads that form a solid foundation for Heli-Coil wire thread inserts. If you’re rebuilding damaged threads or upgrading weak threads, this tap is built to perform with consistency and longevity.

• Premium HSS construction provides durability and heat resistance for repeated tapping across a range of materials, from aluminum to steel.
• Bottoming (STI) design ensures full-depth threads to the bottom of the hole, enabling complete seating of inserts and reliable load transfer.
• Metric accuracy for M18 x 2 aligns perfectly with standard Heli-Coil insert kits, simplifying set-up and delivering repeatable results.
• Thread-repair reliability creates strong, continuous threads that restore original strength and prevent future stripping under typical use.
• Clean, consistent performance with precision-ground edges that maintain cutting geometry over multiple uses and resist premature wear.

Who benefits most: automotive technicians repairing cylinder heads or engine blocks, machinists restoring critical mounting holes in machinery, and hobbyists tackling tool- and equipment-assembly headaches. This tap is ideal for anyone who values durable thread repairs that stand up to vibration, torque, and repeated disassembly.

Practical use scenarios

• Repair damaged or worn M18 x 2 threads in engine blocks, brake calipers, or transmission housings to restore secure fastening.
• Prepare holes for Heli-Coil inserts in critical mounting points where strength matters most.
• Reinforce threaded holes in soft metals where standard taps would wear quickly, extending the life of components.

Usage tips for optimal results

• Choose the correct drill size per your Heli-Coil kit’s guidance and ensure the workpiece is clean and clamped securely.
• Apply light cutting fluid to reduce friction and improve chip evacuation during tapping.
• Maintain a true, perpendicular alignment to the hole and use steady, modest feed pressure to avoid tap breakage.
• After tapping, inspect the thread depth and then install the Heli-Coil insert according to kit instructions for maximum retention and torque resistance.