M33X3.5 H HSF LNG H SSE P6520 B-Semi Bottom -3 itch T315017 t315016r00_CAL GT31-XL HSF P HSS-e Taps .9843mm H5 50 High-Performance Taps Victory Spiral-Flute HSSE-PM Taps Blind Hole mPVD oncentric xial Coolant oncentric xial Coolant Thru- Coolant-Yes Right Hand Helix/Flute