The Eterra Vortex Excavator Stump Grinder delivers unmatched efficiency and durability for heavy-duty stump removal. Powered by a high-torque radial piston motor, its integrated direct drive system converts up to 95% of hydraulic energy into true grinding power. The oil bath–enclosed hub eliminates external couplers and constant greasing, reducing maintenance while extending service life. Its asymmetrical, high-strength alloy steel grinding wheel improves visibility and evenly distributes wear across 12 replaceable cutter teeth, with rock guards and abrasion-resistant wear plates for extra protection. Built from A572 Grade 50 steel, the Vortex grinds stumps up to 18 inches below grade. An elongated rubber chip guard controls debris and reduces buildup, making it a reliable, high-performance solution for demanding excavation and land-clearing operations.