The MS391 is top-of-the-range, high-torque chainsaw for farmers,domestic users and landscapers .This easy-to-manage saw offers improved performance and user comfort when harvesting wood or cutting firewood, with high torque across a wide range of speeds. It features a 64cc engine, a 20" bar, and a 3/8" chain, with up to 20% less fuel consumption and up to 50% lower emissions compared to the previous model without 2-MIX technology.