The DC4 is a combination diamond/ceramic whetstone that will handle all your sharpening needs. The newly-developed DC4 whetstones consists of a fine diamond stone (25 micron) and a very special ceramic stone, made of synthetic sapphire.
The advantage of these materials is that, over long periods of use, they will keep their flat shape which is important when sharpening your knife. And, since these materials are ultra sharp they will sharpen any steel, even the extremely hard powder steels.
You do not need to lubricate these stones, but now and then you should consider cleaning them with warm water and liquid soap. The stones might feel coarse from the start but will become smoother after some use. A leather pouch is included.
These are the best selling sharpening stones 3 years running and comes complete with a quality leather sheath stamped with the Fallkniven logo.
How to use your DC whetstone:
If your knife is dull, we advise you to start with the diamond stone. After restoring the edge to original shape, de-burr the edge lightly with the ceramic stone in order to get a razor-sharp edge.
Use no oil or water.
Start by laying the blade flat on the stone, raise the blade spine approx. the thickness of the blade, and start moving the knife in circular motions.
The ink trick:
Colour the edge with a felt-tip pen. You can check your progress in sharpening the knife by observing where the colour is removed.
How to check the sharpness:
To check the sharpness of your knife, pull the
edge very lighly on your finger nail. If it cuts, the knife is certainly sharp enough for most
Upon delivery, your new DC whetstone will appear very coarse. This coarseness will disappear when the tool is put to use.