M3X0.5 H PPT 71 HSS-e GT705001 670m100x150r6h-d1r00_CAL GT70 piral oint un Tap P HSS-e Taps .1378mm .5 H6 High-Performance Taps Victory Spiral-Point lug HSSE-PM Taps Through Hole o Coolant o Coolant N eutral/Straight lute