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Yeah, the edge off the dmt 8k seems pretty harsh to me also, but I'm usually able to get it fairly smoothed out (at least under a loupe) with lapped spydercos. The scratches it leaves seem pretty...

I got it from here:

Lapidary Equipment, Supplies, Lapidary Tools From Kingsley North

I bought the "abrasive grit kit". It gives pretty good range of grits and also throws in some ceruim oxide...

Well, one alternative is a woodcraft DMT set-

Buy Woodcraft DMT 80th Anniversary Diamond Stone Boxed Set, Woodcraft DMT 80th

That will cover pretty much all repair situations. For a finisher...