9PCS DIN345 Roll Forged Morse Taper Drill Bits Set
HSS 4241(W4Mo2Cr4V), HSS 4341(W4Mo3Cr4V),
HSS4241: HRC59-61, HSS4341:HRC63-64, HSS 6542:64-65
5. Point angle
For drilling cast steel, malleable iron, sintered metal, non-ferrous metal.
14.5, 16, 18, 20, 22, 24, 26, 28, 30mm, one piece each size, packed in a wooden case.
The quality of HSS tools are basically decided by HSS raw material and heat treatment. We can keep a strict control of these procedure.
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