This question already has an answer here:

I learned the the sharpening stone kashers the knife

But are there any sources regarding the use of a sharpening stone/wheel that was used for non kosher knifes (possibly used even when dirty knives) for sharpening kosher knives?

Can use the same sharpening wheel to sharpen meat and milk knives?

marked as duplicate by msh210 Jun 20 '16 at 20:42

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.