Quote Originally Posted by Oakeshott View Post
Stefan,
I've seen you use this phrase "well worn DMT" before. I have one and I've used it for honing out chips on razors and lapping my bevel setting stones, but how do I tell when it's "well worn"? Is there an objective, observational or testable method for determining that?
Mine is may be 3 years old now, it is more like 800 -1000 grit right now as far as cutting speed. I am not sure exactly how this works, but right now this is my favorite lapping and smoothing stone for all my naturals and the Gokumyo. As I said no scratches left after it , and still fast enough to lap stones that are dished after use.