The CSR 150 Pneumatic Walk-behind Saw weighs just 107 lb and is easily portable between work sites. A low-maintenance air motor and gearbox eliminate the need to service belts, carburetors or fuel lines. The heavy-duty gearbox runs at 2,900 rpm and produces high torque output to cut hard materials. Rugged steel construction of the trolley ensures long life and reduced vibration. This saw is designed for breaking out concrete and asphalt and is ideal for joint sawing, floor sawing, trenching, road repair and other cutting applications.