Can I resharpen / regrind my carbide or HSS core drills?
Question
Can I resharpen / regrind my carbide or HSS core drills?
Answer:
In principle, this is possible with carbide and HSS core drills.
However, a special grinding machine and the necessary rake and clearance angles are required.
There are special grinding companies that specialize in resharpening/regrinding.
As a rule, however, carbide and HSS core drills are not resharpened or reground. The costs for this are close to those of a new purchase.