The MS 661 R Magnum professional chainsaw delivers the reliable power and rugged dependability you need for felling, de-limbing, and bucking large diameter trees. This chainsaw features a simple, proven, and non-electronic design. A fuel-efficient engine and low-maintenance air filtration system help keep operating costs low, while the STIHL anti-vibration management system reduces operator fatigue and improves handling when compared to the MS 660, even when using long guide bars. The MS 661 R Magnum chainsaw is the perfect partner for forestry, municipal, and tree service professionals.Find the STIHL CHNSW GAS MS661 at Ace.