The Work Sharp Ken Onion Blade Grinding Attachment is a horizontal belt attachment designed for knife shaping, sharpening and honing tasks. This fourpulley attachment is fully adjustable from 10° to 35° (in 1° increments) and includes 1in. x 18in. engineered abrasive belts in a wide range of grits. The top pulleys have two center distance positions so you can choose your preferred belt ...