Originally Posted by
Utopian
Lapping a Spyderco with a DMT is a good way to end up with a useless Spyderco and a useless DMT. The "grit" of the Spyderco is imparted by its factory lapping. That is why the F and UF hones have different apparent "grits" yet are made with the same material. The cutting capacity of the hone comes from the factory surface, NOT the material within the hone. This is analogous to a file--it's cutting capacity is due to the depth of gouges cut into it rather than some characteristic of the iron.