Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - BA - 4 x

The Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - BA - 4 x is your trusted partner for restoring and reinforcing BA threads with precision and durability. Built for reliability, this tap is designed to create clean, true threads that accept Heli-Coil wire thread inserts with ease, turning worn or damaged holes back into working joints you can count on.

• BA thread precision—specifically engineered for British Association threads, delivering square, burr-free grooves that seat inserts securely and resist pull-out.
• Bottoming geometry for full-depth tapping—cuts threads all the way to the bottom of blind BA holes, ensuring a complete engagement path for the insert and consistent load distribution.
• HSS-G construction—crafted from high-quality steel with a durable finish to withstand repeated use, maintain sharpness, and deliver repeatable results across jobs.
• Optimized for Heli-Coil inserts—taps are tuned to create threads that align perfectly with wire thread inserts, reducing the risk of misalignment and improving repair longevity.
• STI-ready performance—designed to integrate smoothly with standard tapping setups, making repairs efficient in shop or field environments.

Ideal for repairing stripped BA holes in metal components, enclosures, lightweight assemblies, and vintage equipment, this tap helps you extend the life of trusted parts without costly replacements. It’s especially valuable when you’re rebuilding machinery where precise BA threads and reliable insert seating are critical to maintain alignment, torque transmission, and structural integrity.

Why choose this tap over other methods? When a hole’s threads are compromised, plating back a strong, reliable thread with a Heli-Coil insert is often the most durable solution. This bottoming BA tap ensures you reach full depth, minimizes wobble, and sets the stage for a professional repair that feels like the original engineering intent.

Use cases include instrument housings, electrical panels, small- to mid-size mechanical assemblies, and any BA-threaded joint where fastener retention matters. The result is reinforced threads that resist stripping, smoother fastener installation, and a longer service life for your equipment.