Hi, unfortunately we do not have that information available. The manufacturer states it is the finest quality silicon carbide stone. Thank you.
By: John From: Bethany Beach, DE
Jul 28, 2014
Does the Browne Foodservice 821 8" Sharpening Stone have a coarse grit on one side and a fine grit on the flip side?
Hello, according to the manufacturer this sharpening stone has two different surfaces. However, they are so close in similarities that they cannot say that one side is coarse and one is fine. Thank you!