WSBCHBSS-I | Worksharp Benchstone Sharpener FEATURES The Benchtop Bench Stone is an angle guided, 3-sided abrasive sharpening system. Medium and fine grit diamond plates quickly restore a sharp edge, while the fine grit ceramic stone creates an incredibly keen edge on any knife. The innovative Pivot-Response 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 25and optional to use. Pivot-Response feature can be locked out to provide a rigid sharpening surface for a wide range of knife & tool sharpening applications. SPECIFICATIONS 20 and 25 Sharpening guides. Tri-Brasive System – medium grit diamond, fine grit diamond and fine ceramic. Pivot-Response System follows curve of the blade.