For greater maneuverability when felling large trees, turn to the impressive performance of the previous model. Its wrap-around handle also provides greater operator comfort when cutting. Just like the MS 661 C-M, the saw includes STIHL M-Tronic™ engine management technology and delivers less vibration and 20% greater fuel efficiency than the MS 660. This chainsaw boasts of a long-life filtration system using HD-2 filter elements to provide longer run times between maintenance. Other features include an ElastoStart™ handle and a high output adjustable oiler. (Wrap-handle version is available in select areas only.)