The STIHL MS 661 C-M is a powerful professional chainsaw designed for demanding forestry applications, including felling large timber and processing thick logs. Featuring STIHL's M-Tronic™ electronic engine management system, it ensures optimal engine performance at all times. This specific configuration includes a 63cm (25") Rollomatic E Super guide bar and a 3/8" RS (Rapid Super) saw chain, providing excellent cutting performance and durability. It combines high power with advanced technology for efficiency and reliability in challenging conditions.