Made of silicon carbide, this sharpening stone is made up of a coarse surface (#120 grit) and a fine honing one (#320 grit). Your tools will develop very sharp edges if the stone is used in dry form. By adding a small quantity of clear oil, the cutting will be much tempered. Paraffin can be used to clean the stone's pores if they are clogged up.
Length x width x height: 8" x 2" x 1"