Tanoi Metric Long Reach Tap Oxide Spiral Flute HSS-E V3 for most materials M18x2.5The Tanoi Metric Long Reach Tap is a reliable threading tool designed for professionals who need precise, clog free threads across a wide range of materials. With its metric spiral flute design and long reach geometry, it delivers consistent results in deep or hard to access holes. Thread size: M18 x 2. 5 (metric) for large diameter, fine pitched threads across common materials. Flute design: Spiral flute enables efficient chip evacuation, reducing