Standard:
DIN standard, ANSI Standard
Materal::
HSS M35,M2,4341,4241
DIN Standard:
DIN338,DIN340,DIN1897,DIN345
ANSI Standard:
Jobber length Taper length Screw Machine legnth
Surface Treatment
TIN Coated,Bright,Black ,Coffee.
Auto machine
split point and grinding flute