Abstract: A cutter blade sharpener and method allows for quick, easy and uniform sharpening of tree felling head circular cutters. Each cutter blade is individually removed from the circular cutter and is positioned on the sharpener, one at a time whereby the cutter blades are then ground in uniform fashion. The sharpener includes a tubular frame having a slide table mounted thereon for both lateral and longitudinal movement of the cutter blade proximate the grinding wheel.