The Diamond Hone Knife Sharpener Model 2000 is a rugged, high-performance 2-Stage sharpener developed specifically for heavy duty commercial kitchen use. It's cost effective and efficient because it can sharpen quickly, create a long-lasting edge and help prolong the life of quality knives. A commercial sharpener for 20 degree class knives, designed to meet the needs of the commercial kitchen Fast - uses diamond abrasives for hairsplitting sharpness, in seconds. Detachable sharpening module removes easily for cleaning in dishwasher or sink. Sharpens straight edge and serrated knives. 2-Stages - create double-bevel edges that stay sharp longer. Precision angle guides for ease of use and edge control. - Diamond abrasives; gray - NSF and UL listed - Width 5 in - Length 12-1/4 in - Height 5-1/8 in - Sold per each