Zappos.com is proud to offer the Chef's Choice - M316 Diamond Sharpener for Asian Knives (Black) - Home: With the increasing popularity of Asian style knives, the M316 Diamond Sharpener is a top choice when it's time for resharpening. ; Designed to put a factory sharp, precision edge on all contemporary Asian style knives, Chinese style cleavers and the thinner, traditional single-bevel style Japanese blades. ; 2-stage process uses diamond abrasives to sharpen each knife edge separately at 15 degrees and hone it to perfection. ; Elastomeric angle guides eliminate guesswork for easy sharpening from the bolster to the tip of the knife. ; Also converts traditional American and European 20 degree edges to the Asian style 15 degree edge. ; Model number: M316; Dimensions: 8.5 wide x 4.0 high x 4.0 deep. ; Weight: 3.8 lbs. ; Assembled in the U.S.A.