DMT Diafold one-sided sharpening stone Extra Coarse, FWX

A Diafold sharpening stone is designed like a butterfly knife where the handle is folded around the diamond-coated sharpening stone. As such the stones are always protected. You can use one side of the stone. The colour in the famous DMT round pattern shows you which grain size you are dealing with.

Information about the grain sizes of DMT sharpening stones.

The grain size of a diamond-coated stone and a water stone cannot easily be compared. This is because the construction and materials used are substantially different. With a water stone, the sharpening grains are incorporated in the stone. These grains are also released from the stone during use and become some kind of sharpening paste. With a diamond-coated stone, the diamonds are secured in the surface of the stone.

Good to know

You can use the DMT sharpening stones with or without water. The advantage of sharpening with water is that the stone is lubricated and the sharpening residue is removed. Never use oil, always water. It is also good to know that a diamond-coated sharpening stone must be sharpened as well. A new sharping stone removes quite a lot of material. Only after 5 to 10 knives does the stone have its final effect.