Thread: DMT 8C Break-in

Originally Posted by Basset

These posts make me question a little how I lap. I draw the pencil grids on the Naniwas and then lap under running water until the pencil lines are gone. I might do it a second time. Then I call it done. With my DMT 8c, this takes maybe 30 seconds. Am I doing it wrong?

As long as the end result is a flat hone I don't see how you are doing it wrong. The Naniwa I was lapping was high in the center, by quite a bit I might add, so it took a while to flatten. You might have lucked out and bought stones that were basically flat already.

I've said this elsewhere, but for those of you frustrated with the lapping speeds of the D8C, one of the bets investments I've made in recent months was upgrading from the D8C to the W250CXNB, which has the *interrupted* surface coarse/extra-coarse. The interrupted surface makes a huge difference in lapping efficiency - as does the step up from coarse to extra coarse. I have heard good things about the XX (extra extra coarse) though, which only comes in continuous surface.