Precision - machined and polished, high quality, heavy-duty, ribbed cast-iron frame. One-piece, top-quality machined steel cutter head, mounted on 2 sealed, permanently lubricated bearings for longer life. Knives are secured by a knife-locking bar and locking screws. Adjustment screws make knife alignment quick and easy. High quality, precision machined and polished, ribbed cast-iron tables, secured to the frame on adjustable gibs for easy adjustments. Graduated depth of cut scale. Powerful, North American designed, totally enclosed fan cooled, industrial motor, with a dynamically balanced cast-iron pulley, and matching dual V-belt driven cutter head.