FS6600 D 3-speed gearbox flat saw is a professional saw perfect for use on large and mid-size jobs. A Tier 3 compliant engine reduces emissions and the patented power transmission system transmits more power to the bladeshaft (60 hp), with optimum torque, than similar models in its class. Unlike other large flat saws, the addition of the 3-speed gearbox enables different sized blade to run at their ideal performance level – ensuring you get the most out of every cut.