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Now that it's clean it's working WAY better. I think it was a combination of not cleaning the DMT, pressing to hard, and not using enough water.

Thanks everybody!

--Shoki

It seems to file my thumbnail and scratch my wife's glasses... (they were her old prescription ones) so I guess it still has some diamonds on it. I never really cleaned it so I think it was loaded up...

Here's a quick photo. It seems to be shinier at the corners and there are small dots of shiny metal showing through. I gave it a scrubbing with cleanser and a nylon brush. It seems cleaner, I'll try...

Hello,

I have been using my DMT325C as a kitchen knife sharpener. I have also been trying to use it as a Norton 4k/8K lapper. It seems to be imparting "dirt" or perhaps steel to the Norton.

At...