The STIHL MS 251 is a powerful and compact 2.2 kW petrol chainsaw, ideal for efficiently cutting firewood in the forest. Thanks to advanced technologies, the saw offers comfort, safety, and long maintenance-free operating intervals. Special features: Anti-vibration system (AV): Reduces vibrations to the handles, protecting hands and arms during prolonged use. Combi-lever: All functions (start, stop, cold/warm start) can be operated via a single lever for safe and comfortable use. Compensator: Ensures constant power, exhaust quality, and fuel consumption, even with dirty air filters. Tool-free fuel cap: Quick and easy access to the fuel and oil tank without tools. Long-life air filter system with pre-separation: Removes coarse dust particles and extends filter life, requiring less maintenance. STIHL 2-MIX engine: Economical, powerful, with up to 20% less fuel consumption; up to 50% fewer emissions. STIHL Ematic system: Optimizes chain and guide bar lubrication, reducing oil consumption by up to 50%. Side-mounted chain tensioning: Safe and easy chain tensioning without contact with the sharp saw chain. Carburetor preheating: Reliable starting in cold temperatures with simple summer/winter settings. Technical specifications: Saw chain: 3/8" P, Picco Micro 3 (PM3) Displacement: 45.6 cm³ Power: 2.2 kW / 3 hp Weight: 4.8 kg (saw) / 5.38–5.58 kg (system weight) Sound power level: 114 dB(A) Sound pressure level: 103 dB(A) Vibration level left/right: 3.9/3.9 m/s² Power-to-weight ratio: 2.2 kg/kW CO2 emissions: 862 g/kWh Standard delivery includes: STIHL MS 251 Guide bar 40 cm Chain Picco Micro 3 (PM3), 3/8" P 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.