Generac Pro’s chipper shredder easily cuts through branches, sticks and garden waste up to 1.5 inches thick. The unit has oversized hoppers with a 20-inch by 18-inch opening. This means you can feed multiple branches at a time. The Pro-Spec Chipper Knife is made from high-carbon, high-chromium forged alloy. With a large, vertically oriented hopper and heavy-duty chipping knife, branches are reduced to wood chips without the need for force feeding. The large, durable pneumatic tires are designed for a smooth ride during use and transport. It can handle even the roughest terrain and is road-ready at speeds up to 45 mph.