The Work Sharp® Benchstone Knife Sharpener™ is an Angle Guided, 3-sided abrasive sharpening system. Medium (320) Grit Diamond and Fine (600) Grit Diamond Plates quickly restore a sharp edge, while the Fine Grit Ceramic Stone creates an incredibly keen edge on any knife. Abrasives are user-replaceable. The innovative Pivot-Respons® system allows the abrasive to follow the curve of the blade – making manual sharpening faster, easier, and more precise than ever. Sharpening Guides are interchangeable from 20° or 25°and optional to use, additional 15° and 17° Sharpening Guides Sold Separately. Sharpens pocket and outdoor knives of all types and can also be used on kitchen knives.  The pivot-Response® feature can be locked out to provide a rigid sharpening surface for a wide range of knife & tool sharpening applications. Anti-skid feet ensure a safe and stable process. No water or oil is required, making sharpening faster with less setup and clean-up.  Abrasives are user-replaceable to provide serviceability over the life of the sharpener. Professional level bench-top knife sharpening made easy. Angle Guides and Pivot-Response® sharpening base provide precision, consistency, and a superior sharpening experience than other sharpening stone systems.