Operating at about half the speed of a conventional grinder, this grinder reduces the risk of overheating the tool and softening the steel. It comes with white aluminum oxide wheels, which are better suited to sharpening edge tools than the carborundum wheels found on most grinders. The 1" wide 60x and 120x wheels have a medium bond strength and a medium-density structure, so they run cooler and are less susceptible to glazing. The 1-horsepower motor provides ample torque when needed for significant stock removal and is rated for continuous use. It has heavy-duty industrial bearings for durability and to help minimize shaft runout (especially important with CBN wheels).