This video shows how you can sharpen a very dull mower blade in just seconds with Burr King's new Mower Blade Grinder. The unit is based on Burr King's best selling, industrial grinder the Model 760. The Mower Blade Sharpener allows the user to quickly sharpen blades in seconds, yes seconds. The sharpener runs a standard size abrasive belt at 8,000 SFPM. Time for an education. Why is this so important? I'm glad you asked. Belts that are designed to run this fast (90 MPH) take metal away quickly and do not produce much heat. As the video shows the operator slides the blade across the wheel a couple of times, then uses the "slack belt" area do deburr the edge. If you have questions please ask. (less info)