Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - Metric - M33 x 3.5The Baer Heli Coil Tap is the precision tool you reach for when you need to repair and reinforce internal threads with confidence. Designed as a robust bottoming tap (STI) for metric threads, this tap creates clean, accurate M33 x 3. 5 threads that form a solid foundation for helicoil wire thread inserts. Built to endure demanding applications, it delivers reliable performance across metalworking, automotive, and industrial repair jobs. Why this Heli