Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - BSW - 3/8 x 16

The Baer Heli Coil Tap is the trusted solution for precise thread restoration and reinforced fastener holes. Designed to work in tandem with wire thread inserts, this Bottoming Tap (STI) specifically targets 3/8 x 16 BSW threads, delivering clean, true-cut threads that form the foundation for durable, high-strength reinforcements.

Why this Baer Heli Coil Tap stands out

• Bottoming design for complete depth. The tap reaches the bottom of the hole, ensuring full thread engagement so inserts sit flush and perform under load.
• STI geometry for reliable insert seating. Precision geometry guides the tap to produce consistent threads that align perfectly with Heli-Coil wire inserts.
• 3/8 x 16 BSW compatibility. Suited for common British Standard Whitworth thread forms found in many machines, brackets, and automotive components.
• Durable, repeatable performance. Built to maintain sharp cutting edges and accurate pitch so you can trust each repair or reinforcement project.
• Versatile in a wide range of materials and applications. Ideal for restoring damaged threads in equipment housings, engine components, brackets, and other critical threaded joints.

Practical use scenarios include repairing stripped or worn threads in metal housings, reviving damaged mounting holes, and creating a reliable seat for coil inserts that restore original strength. With the Baer Heli Coil Tap, you’ll achieve precise thread geometry, minimize waste, and extend the life of fasteners and assemblies.

Tips for optimal results: align the tap true to the hole, use steady, even pressure, and employ cutting fluid to reduce friction and heat. After tapping, clean the hole thoroughly before installing the Heli-Coil insert to ensure flawless engagement and long-term performance.

Choose Baer for consistency, durability, and professional-grade thread repairs that stand up to real-world use.