Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - Metric - M26 x 1.5The Baer Heli Coil Tap is your go to solution for restoring and reinforcing delicate or damaged internal threads with precision and confidence. Designed for metric applications, this Bottoming Tap (STI) works hand in hand with wire thread inserts to deliver durable, vibration resistant threads that stand up to demanding use in automotive, machinery, and equipment maintenance. Precise metric threading M26 x 1. 5 taps engineered to create clean,