Working with very sharp metal drill bits is essential and very easy from now on.
Find here the CBN grinding wheels and diamond grinding wheels for your Holzmann BSG13Pro, Holzmann BSG30Pro or Bernardo DG13M and DG32MD twist drill sharpener for example.
There are 7 products.
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Grinding wheel CBN for HSS drills on grinder DG13E and BSG13PRO
Diamond wheel for HM drills on Holzmann BSG13PRO sharpener
Diamond grinding wheel for HM drills on sharpener
Diamond wheel for HM drills on sharpener
CBN grinding wheel for HSS drills on sharpener
Diamond grinding wheel for HM drills on sharpener Bernardo DG20M
CBN grinding wheel for HSS drills on Bernardo DG20M sharpener