M3.5 X .6 High Speed Steel Thread Forming Roll Tap Metric TIN Coated
0 Thread ChamferFor through hole tappingTHREAD FORMING:Taps have no flutes or cutting edges & providechipless tappingLUBE GROOVES:For lubrication & venting in blind holes (sizes M3.5 Thread ChamferFor maximum thread length in blind holes due toits short chamferBOTTOM: 2.5 Thread ChamferFor blind hole tappingPLUG: 4.5 and larger)MATERIALS:brass, copper, lead, stainless steels, carbon steels,zinc, most ductile materials producing stringy chipsare great for forming.