The Baer Heli Coil Tap is the precise, purpose-built tool you rely on for impeccable thread repairs and reinforced fastener paths. Designed to support Heli-Coil wire thread inserts, this bottoming tap (STI) delivers clean, full-depth UNC threads every time, ensuring your repairs stand up to real-world use.

• Bottoming depth for complete engagement — cuts threads all the way to the bottom of the hole so the coil insert seats fully and remains secure under load.
• UNC compatibility 9/16 x 12 — tailored for common automotive, industrial, and machinery applications where strong, repeatable threads matter.
• Durable precision — engineered to maintain sharpness and geometric accuracy through repetitive cuts, delivering consistent thread quality project after project.
• Cleaner, more reliable repairs — optimized tooth geometry minimizes cross-threading and chatter, producing ready-to-install threads for coil inserts.
• Versatile use cases — ideal for restoring stripped threads in engine housings, transmission casings, mounting points, and other components that demand durable, serviceable threads.
• Designed for reliable insert installations — pairs seamlessly with wire thread inserts to restore original strength, improve fatigue resistance, and extend component life.

With the Baer Heli Coil Tap, you’re equipping your toolbox with a dedicated solution for long-lasting thread repairs. The tool’s precise manufacturing ensures consistent results, so you can tackle repairs with confidence, reduce rework, and keep critical assemblies performing at their best.

Tip for best results: match this bottoming tap to your insert kit’s recommended drill size, maintain a steady cutting rate, and apply light lubrication to preserve edge life and thread integrity during every repair.