The WSKTS-KO Blade Grinding Attachment is a horizontal belt attachment designed for knife shaping, sharpening and honing tasks. This 4 pulley attachment is fully adjustable from 10° to 35° (in 1° increments) and includes 1? x 18? engineered abrasive belts in a wide range of grits. Allows you to customize your blade edge to best meet your needs or preference. Work Sharp Engineered, Ken Onion Designed. Attachment only, requires the WSKTS-KO Sharpener for use. Does not fit Work Sharp model WSKTS.WSKTS-KO