Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - Metric - M24 x 1.5Baer Heli Coil Tap M24 x 1. 5 is the precise bottoming tap you reach for when a standard thread repair wont cut it. This metric Heli Coil tap is built to deliver clean, accurate threads for wire thread inserts, restoring strength in damaged holes and reinforcing critical mounting points. Engineered for durability and repeatable results, the Heli Coil Tap uses high speed steel (HSS G) construction to resist wear during cutting and provide reliable