Stumps will soon be nothing more than a memory with a 3 inch deep cut on each pass. The Holt Eraser HGW30 is a self-propelled stump grinder designed for 28 inch above to 12 inch below grade cutting. With an impressive 85 degree swing arc that equals a 46 inch horizontal pass. The controls are easy to handle and can be dialed in for your specific needs with traction control adjustment and variable swing speed.