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we produce :
a) straight flutes taps
b) spiral flutes
c) straight flutes with spiral point
d) fluteless taps
hand taps and machine taps
standard can be :ISO529 .ASME/ANSI B949 BS949
DIN171 DIN374 DIN352 DIN376
the surface:bright or titanium coated
especially the hard alloy spiral groove screw tap