Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - Metric - M22 x 2.5Meet the Baer Heli Coil Tap the trusted tool for precise, durable thread repairs and reinforcements in metric sizes. Designed to deliver clean, true threads every time, this bottoming tap (STI) is the essential partner when youre restoring integrity to damaged holes or creating robust threads for Heli Coil wire thread inserts. The M22 x 2. 5 size is optimized for high load applications, from automotive components to industrial machinery, where