For the largest, toughest and most demanding jobs, professionals can find the performance they need in the MS 881 chainsaw. With its updated engine design and up to 41 inch guide bar length, the MS 881R is the largest, most powerful saw in the STIHL lineup. Greater fuel efficiency than the previous model means savings of time and money. Another time-saving feature is the stop switch, which automatically returns to run position after the engine is stopped, reducing the chance of flooding the engine when starting.