Green Power America's GWC8310 is a powerful sturdy wood chipper designed to last. The motor has a generous 15 HP to ensure your cutting needs with a max cutting speed of 2,200rpm. The tire's are 16" with a wheelbase of 25". The cutting blades use a dual reversible double edge blades which provides longer blade life, with a cutting tree diameter of 5" and infeed dimensions of 18" X 15", this woodchipper can get your cutting job done with confidence. The expulsion chute is adjustable to 180 degrees up or down. | Green Power America | | 15HP 5" Commercial Wood Chipper | Gray | Best Buy