Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - BSW - 1/8 x 40

Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - BSW - 1/8 x 40

When threads wear, strip, or fail, you need a tap that delivers dependable, repeatable results. This Baer Heli Coil Tap is engineered to cut clean, true threads that accept helicoil (wire thread insert) repairs with precision and confidence. Built for durability and long service life, it’s the essential tool for restoring strength to damaged holes and reinforcing critical joints across automotive, industrial, and workshop projects.

• Bottoming tap design — reaches the full depth of blind holes, ensuring every helicoil insert seats squarely and stays locked in under load.
• BSW 1/8 x 40 size — matches standard British Standard Whitworth threads, making it compatible with common helicoil kits and repair scenarios.
• HSS-G construction — premium high-speed steel (HSS-G) for enhanced wear resistance, rigidity, and a sharp, consistent thread profile through repeated use.
• Precision geometry — carefully ground flutes and chamfer to deliver smooth cutting action with minimal chatter, reducing the risk of cross-threading or chatter-induced damage.
• Heli-Coil friendly — specifically designed to work in tandem with wire thread inserts to restore torque-ready threads that handle repeated assembly and disassembly.
• Versatile workshop staple — ideal for engines, gear housings, brackets, and other components where rebuilt threads must withstand vibration and dynamic loads.

Use case highlights: repair stripped threads in aluminum or steel components, restore critical thread engagement in repairable holes, or prepare a base for reliable helicoil reinforcement in high-stress assemblies. This tap is built for professionals and serious DIYers who demand consistent, repeatable results—whether you're reviving an old engine block, rebuilding a machine base, or refurbishing a rugged chassis.

Tips for best results: pair the tap with the appropriate drill size from your helicoil kit, lubricate the cutting edges lightly to extend tool life, and exercise steady, even pressure to maintain straight, true threads from bore start to bottom.