SK11 Diamond Grinding and 204 x 65 x 7 mm Double-Sided Stone, #400 #1000,

Features: A diamond whetstone that can sharpen ceramic knives and hard metals such as carbide metals, which conventional whetstones could not. Uses: Rough grinding and medium finishing Grit size: Rough grinding surface 400, medium finishing surface 1000 Whetstone size: approx. 204 x 65 x 7 mm Specifications: Comes with anti-slip underlay