Just curious,
What does it mean when a router bit manufacturer lists two different grades of carbide for their bit?
For Example: Rockler lists K10 and K20 carbide for this bit which appears to have one continuous cutting surface (albeit two of them).
Is one of the cutting surfaces made of K10 for finishing and the other side K20 for greater wear resistance?
Or are different parts of the cutting surface made of different grades?
Or are some lots made with K10 and others K20 depending on what deal Rockler got that week?
Confused......