VC SALES Sharpening Knife and Tools Carbide Combination Stone Knife Sharpening Stone  (Ceramic)

Silicon carbide combination bench stones have both coarse and fine grit silicon carbide surfaces. These fast-cutting stones are used to sharpen edges on tools to moderate tolerances quickly. Dark grey in color. Stones are very fast cutting and while thin clear oil is usually sufficient, cutting may be tempered by soaking the stone in hot petroleum jelly.