All cutters are equipped with Heavy Duty 540 RPM 125 H.P. Gearbox, Round Blade Carrier, Shielded Drive Shaft with Slip Clutch, Rubber Shielding (front and rear), Laminated Tail Wheel, Replaceable Skid Shoes, and Heavy Duty Cat. I & II Hitch. Sturdy 7 ga welded deck and sides.