10" overall length For fast & efficient sharpening Coarse grit Silicon carbide abrasive stone Oval edges Excellent for general sharpening of garden tools Product Description Specs This silicon carbide "scythe" stone quickly produces a fast-cutting edge on tools including sickles, scythes, brush hooks, & many other garden tools. This stone is most frequently chosen where the speed of sharpening is the primary consideration. A great & efficient multi-purpose sharpening stone for garden tools & blades. To obtain best results, lubricate your stone with genuine Norton Sharpening Stone Oil. Oil acts as an effective lubricant during sharpening to float away metal & abrasive particles that would otherwise clog up the stone. When metal particles clog the stone pores, it's called glazing & can ruin the stone. From the Manufacturer: Norton Sharpening Stones are made of the highest quality materials & are unequaled for long sharpening life, maintenance of shape & smooth cut. Product Title Overall Length Width Height Particle Size in Microns Model # Norton Scythe Stone ~ Coarse Grit 10" 1 - 1/4" 3/4" 173 microns TD1