Fallkniven DC4

The DC sharpener – a combination diamond/ceramic whetstone that will handle all your sharpening needs. Our DC3 and DC4 whetstones consist of a fine diamond stone and a very special ceramic stone, made of synthetic sapphires. The advantage of these materials, although they get worn, will still keep their flat shape this is important when you sharpen your knife. And, since these materials are the hardest we know of, they will sharpen any steel, even these extremely hard powder steels. You don’t need any lubrication for these stone 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/better after some use. A leather pouch is included.

Dimensions: 7 x 32 x 100 mm

Weight: 65 g

Diamond grit 25 micron

Ceramic grit   15 micron

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 lightly on your finger nail. If it cuts, the knife is certainly sharp enough for most tasks.

Leather strop

The back of the leather cover functions as a leather strop. Together with our green honing compound “Chrox” it works well for stropping knife edges. See photo below.

Break-in-period

Upon delivery, your new DC whetstone will appear very coarse. This coarseness will disappear when the tool is put to use.