My hunting knives have d2 steel blades. I use eze lap diamond stones. I seem to get a longer life with eze lap than DMT. I use the diamond stones to shape the edge and finish the blade with a leather strop treated with yellowstone honing compound. The strop with the honing compound polishes the edge and leaves it incredibly sharp. I can de-bone deer using only the strop to touch up the knife.

Note that d2 is very brittle so you cannot grind it to a really fine angle or the blade will start chipping. Also you want to avoid the dropping the knives. They have been known to break when dropped onto a rock.