Machining > Threading > Taps > Imperial - Spiral Flute Taps | Sutton T699 Spiral Flute Tap R50 UNI Black Magic | Sutton T699 Spiral Flute Tap R50 UNI Black Magic | Universal high-performance tapping. | PM-HSSE V3 offers superior tool life. | Use in stainless steel and high strength steels up to 850N/mm2. | Blind holes up to 3 x d1. | Suitable for synchronous tapping in machine operations. | Specifications | Material: PM-HSSE V3 | Surface Finish: Hardlube | Sutton Designation: UNI | Geometry: R50 | Chamfer: Form C / 2.5 x P | Limit & Nut Tolerance: ISO 228 | Applications | Optimal for Steel - Non-alloy, cast & free cutting (~ 0.15 %C)-125HB | Optimal for Steel - Non-alloy, cast & free cutting (~ 0.45 %C)-190HB | Optimal for Steel - Non-alloy, cast & free cutting (~ 0.45 %C)-250HB | Optimal for Steel - Low alloy & cast | Optimal for Steel - Corrosion resistant & cast - Ferritic / Martensitic-200HB | Optimal for Stainless Steel - Austenitic-180HBOptimal for Stainless Steel - Duplex-250HB | Optimal for Aluminum & Magnesium, wrought alloy - Non-Heat Treatable-60HB | Optimal for Aluminum & Magnesium, wrought alloy - Heat Treatable-100HB | Optimal for Aluminum & Magnesium, cast alloy 12% Si - Non-Heat Treatabl-75HB