Work Sharp WSSAKO81112 Blade Grinder Attachment Attachment only, requires the WSKTS-KO Sharpener for Use This 4 pulley attachment is adjustable from 10 Degree to 35 Degree and includes 1" x 18" engineered abrasive belts in a wide range of grits This attachment is similar to what blade makers use. Provides a wide range of adjustability, you can custom shape, sharpen and hone your blades at home The belt speed is adjustable from 1200 SFM to 2800 SFM to accommodate a wide range of sharpening and honing tasks The Blade Grinder attachment provides a full selection of 1" x 18" abrasive grit belts and also accepts an optional leather belt for power stropping