Tanoi Metric Long Reach Tap Oxide Spiral Flute HSS-E V3 for most materials M33x3.5Designed for professionals who demand precision and durability, the Tanoi Metric Long Reach Tap Oxide Spiral Flute HSS E V3 handles a wide range of materials with consistent threading results. Its extended reach and spiral flute optimize chip evacuation, delivering clean, accurate threads in deep or recessed holes. Thread size and geometry: Metric spiral flute tap for M33x3. 5 threads, with a long reach design to access challenging locations. Material