... driver, steel measuring tape, reamer, hex key, wrench, grinding wheel, diamond tool, thread tap, ball nose, twist ... flutes with spiral pointd) fluteless tapshand taps and machine tapsstandard can be :ISO529 .ASME/ANSI B949 BS949DIN171 ... DIN376the surface:bright or titanium coatedBritish and American machine with taps1/8-407/16-205-40G11/ ... The metric specifications M2 …………M33*2 Machine Taps for Aluminium