The STIHL MS 251 Chainsaw is designed to deliver all the power you’d expect from STIHL equipment, yet with a comfortable and ergonomic design.  The MS 251 is perfect for felling small trees, pruning and thinning, and cutting firewood simply and efficiently.  And with up to 20 percent fuel savings and 50 percent reduced emissions (as compared to previous models), you can enjoy a longer run time while feeling good about your impact on the environment.  Features like a Master Control Lever, reduced vibration, a Long-life air filter system and tool-free fuel caps for safe and easy refuelling make the STIHL MS 251 a lean, easy-to-use machine that still packs plenty of power.