FS 309 9HP US Robin delivers the power you need to work on small and midsize concrete jobs. It uses long-lasting bearing lubrication and an efficient design to prevent the need for maintenance during the first 250 hours of usage. The HUSQVARNA® FS 309 walk-behind concrete saw uses a special mounting system to minimize vibrations while the blade slices concrete. Its handles adjust for extra stability, and the unit weighs less than 150 pounds to allow for efficient transport. The lightweight walk-behind concrete saw features a cut-depth meter to show how far the blade will cut, and its 4-stroke engine generates enough power to slice through asphalt and concrete.