Europa Threading Tap - Spiral Flute (45* Helix) - Metric Coarse - HSS-E - Blue Ring - M18 x 2.5The Europa Spiral Flute Threading Tap is built for metric coarse threading in demanding industrial environments. With a spiral flute design and a 45 helix, it delivers precise, consistent M18 x 2. 5 threads and long lasting performance thanks to its cobalt enhanced HSS E core. Spiral flute design with 45 helix: Optimizes chip evacuation and cutting stability for reliable tapping in tougher materials. Threading specification: Metric coarse threading