Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - Metric - M22 x 2 ISO Insert - VN Style 1/4" nominal size with 19

1/4" nominal size with 19 TPI

Built to perform in demanding environments

8 mm ball nose creates precise radii and smooth surface finishes on complex cavities

Its robust design gives confidence in daily use

precise cuts across demanding turning applications

Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - Metric - M22 x 2 ISO Insert - VN Style 1/4" nominal size with 19Baer Heli Coil Tap Bottoming Tap (STI) for Metric M22 x 2 thread repairs and reinforcements. When paired with Heli Coil wire thread inserts, this precision tool restores damaged holes with rock solid threads, delivering reliable performance in automotive, industrial, and machine shop work. Why this tap matters Designed specifically for Heli Coil inserts, the STI bottoming tap cuts clean, accurate M22 x 2 threads all the way to the bottom of the hole.