Gränsfors Bruk Natural Sharpening Whetstone

  Made in Gränsfors, Sweden - Since 1902 No. 4035 Model Natural Sharpening Whetstone Comprised of two unique natural materials which are chosen to best supply the needs of coarse & fine grinding 3-1/2" stone length Includes a leather cover case for stone Product Description Specs The Gränsfors Bruks Natural Whetstone is comprised of two unique natural materials which are chosen to best supply the needs of coarse and fine grinding. The coarse side is made from a sandstone from Orsa, Sweden, with a grain that varies from 120 – 200 grit. This sandstone is a fossil-free sedimentary rock which is comprised mostly of silica-bound quartz. This sandstone has been used as a sharpening stone since the 1500s, and the qualities of its coarse, slightly porous surface work well to grind an edge back to its original geometry and begin sharpening before final honing. The fine side of the whetstone is made from a fine-grained slate from Los, Sweden. It is a unique material which is only f