Kalthoff Sharpening Stone

From Julia Kalthoff! Genuine Swedish Sharpening stone.  5.25"  x 1.5" X .5" in a sewn red leather case. A whetstone is a must for everyone that uses edge tools. Learning how to sharpen your own tools gives greater self-confidence and understanding of how to use the tool. In addition, it gets safer and more pleasurable. 

This whetstone is made from Swedish shale, quarried and sawn in Loos in northern Hälsingland, Sweden. Well known to make a sharp edge among Swedish craftsmen, it is useful when sharpening everything from your dear axe to knives, scissors or anything with an edge. 

The shale is made from mud packed under huge pressure for billions of years, making a high density and even grit well suited for sharpening. The grit varies around 1000. The sharpening effect is improved with water on the stone, as it removes swarf and stops it from clogging the sharp grit. 

The size of this stone is big enough to get a comfortable grip yet small enough to fit in your pocket. It is thin enough to sense the edge through the stone when sharpening. It can be placed on the table and used as a small bench stone for small things like knives.