The DC4 sharpener is a whetstone with a combination of diamond and ceramic that will handle all your sharpening needs. The DC4 whetstone 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. 
 
The DC4 is also perfect for sharpening ice skates.
 
- Dimensions: 7 x 32 x 100 mm
- Weight: 65 g
- Diamond grit 25 micron
- Ceramic grit   5 micron
- Leather Pouch included