Petrol chainsaw for cutting firewood. The long-life air filter system ensures a long filter life, while the tool-free fuel cap allows for easy and safe refueling. Thanks to the one-piece engine cover, quick service access is guaranteed. Equipped with the Light 04 guide bar with an innovative design and the new .325"-RM3 Pro saw chain for superior cutting power. Special features: Economical and powerful thanks to the STIHL 2-MIX engine with 1-in-4 channel technology Up to 20% less fuel consumption and up to 50% fewer emissions HD2 filter with very fine pores, oil- and water-repellent and easy to clean Side chain tensioning prevents contact with the sharp chain Tool-free fuel cap for quick and safe opening and closing Long-life air filter system with pre-separation for double filter service life Anti-vibration system for less strain on arms and hands Combi-switch for easy operation of start and stop functions M-Tronic automatically recognizes cold or warm start – full throttle possible immediately STIHL Ematic system: up to 50% less chain oil consumption STIHL four-channel technology for optimal combustion and high torque Carburetor preheating for trouble-free operation in cold conditions Technical data: Displacement: 50.2 cm³ Power: 2.6 kW / 3.5 hp Weight: 5.6 kg Power-to-weight ratio: 2.2 kg/kW CO2: 826 g/kWh Sound pressure level: 103 dB(A) Sound power level: 115 dB(A) Vibration level left/right: 4.5 / 4.5 m/s² Saw chain pitch: .325" Standard delivery: STIHL MS 271 Light 04 guide bar 40 cm .325" RM3 Pro saw chain Pre-assembled guide bar and chain Do you need to replace the saw chain? Click this link to watch the video. Warning: This chainsaw is intended exclusively for professionals trained in tree care. Use without proper training can lead to serious injury.