Spyderco Benchstone Ultra Fine 3″ X 8″ Sharpening Stone 306UF

Spyderco’s 3″ X 8″ X 1/4″ ultra-fine ceramic benchstone is flat, thin and ultra smooth for professionally finishing and sharpening wide tools like chisels, large blades, wood-working equipment, plane irons, even ski and snowboard edges. Made from Alumina Ceramic, it is manufactured in the United States using a process where a binding agent is combined with Alumina particles that are actually synthetic sapphires.