8" Diameter blade. Cuts down to a maximum of 2.5".  4hp gas Honda engine. Light enough for one man to load and unload.   Must use within 24 hours of pouring concrete, otherwise use a standard walk behind saw.  Larger wheels help spread the weight of the saw over a wider area.  Raise/lower system has an integrated depth stop to allow the depth to be set once.  Weighs 106lbs.  Diamond blade not included in rental price.