Creating and maintaining a smooth surface to the edge of the hoof wall helps prevent splits and flares that weaken the hoof.  The Hoof Buffer has been designed so that its sanding belt can flex slightly when applied to the edge of the hoof wall. This action allows you to create the smoothest surface possible when rounding the perimeter of the wall.  The Hoof Buffer is the perfect companion to the Radius Rasp. Used together, this 'dynamic duo' quickly round and smooth the wall, creating the most durable arc you can possibly make.