Tool & Cutter Grinding
Tool and cutter grinding sharpens and re-profiles cutting tools such as drills, end mills, reamers, form tools, taps and milling cutters, restoring cutting edges and geometry. Regrinding extends tool life and cost-effectively maintains special tools.
What it is
Worn tools are reground on universal or CNC tool grinders, restoring clearance and rake angles, flutes and edge preparation. Special form tools and cutters can also be made new from blanks.
Carbide tools are ground with diamond wheels, while HSS tools use CBN or aluminium oxide wheels. Regrinding usually costs far less than a new tool.
Typical applications
- Resharpening drills, end mills and reamers
- Regrinding milling cutters and saws
- Form tools and special cutters
- Punches and knives
- Tool inventory maintenance
Suitable materials
- HSS and cobalt HSS
- Solid carbide
- Brazed carbide tools
- Tool steels
Points to consider
- Regrind before tools are badly damaged; chipped tools lose more length.
- Coated tools lose coating on reground faces; recoating can be arranged.
- Keep original tool geometry details for special tools.
- Batch tools together for economical regrinding.
Frequently asked questions
Is regrinding cheaper than buying new tools?
Usually yes, especially for carbide and special tools. A tool can often be reground several times.
Can carbide tools be resharpened?
Yes, using diamond wheels on tool grinders. Recoating can be added after grinding if needed.
Can you make a special form tool?
Yes. Form tools and special cutters can be ground from blanks to a drawing or sample profile.