The Work Sharp Blade Grinding Attachment is designed for use with the Work Sharp Ken Onion Edition Knife & Tool Sharpener, adding enhanced sharpening control and surface area for the ultimate knife sharpening experience. The Blade Grinding Attachment is designed for knife shaping, sharpening and honing tasks. The Work Sharp Blade Grinding Attachment is constructed using cast metal components and engineered polymers built to endure the rigors of heavy shaping and sharpening tasks. The unit quickly connects to the Ken Onion Edition Knife & Tool Sharpener without tools, and belts are easily changed by hand. The blade grinder uses 1x18engineered abrasive belts in a wide range of grits, and a 4 pulley system that is fully adjustable from 10° to 35° in 1° increments. Belt speed is adjustable from 1200-2800 SFM (square feet per minute) to accommodate a wide range of sharpening and honing tasks. The center position of the top two pulleys is adjustable to set your preferred belt deflection