Machining > Threading > Taps > Metric - Spiral Flute Taps | Suttons Spiral Flute Taps - R50 VAPM | Dimensions | d1: M20 | d2 (mm): 16 | l1 (mm): 140 | l2 (mm): 25 | l4 (mm): 15 | Square Size (mm): 12 | z: 4 | Drill Size (mm): 17.5 (drill) | Pitch (mm): 2.5 (pitch) | Features | Universal high performance tapping | PM-HSSE V3 offers superior tool life | Use in stainless steels and high strength steels up to 850N/mm2 | Deep blind holes | Depths up to 3 x d1 | Specifications | Designation: | Material: Premium Grade High Speed Steel (HSSE-V3) | Finish: Titanium Carbonitride (TiCN) | Max Cut Depth: 3xD | Shank Form: Reduced Shank (with square drive) | Helix Angle: R50 | X: als | Type: Spiral Flute | Standard: DIN376 | Thread Form: ISO Metric Coarse (M) | Nut Tolerance: 6HX | Lead: Form C / 3 x P | Applications | Steel - Non-alloy, cast & free cutting (~ 0.15 %C): Annealed | Steel - Non-alloy, cast & free cutting (~ 0.45 %C): Annealed | Steel - Non-alloy, cast & free cutting (~ 0.45 %C): Quenched & Tempered | Steel - Low alloy & cast | Steel - Corrosion resistant & cast - Ferritic / Martensitic: Annealed | Stainless Steel - Austenitic: Age Hardened | Stainless Steel Duplex | Stainless Steel - Precipitation Hardening | High temperature alloys - Fe based: Annealed | High temperature alloys - Ni / Co based: Annealed