The Stihl MS 251 Wood Boss chainsaw is designed to deliver all the power you’d expect from Stihl equipment with a comfortable and ergonomic design. The MS 251 Wood Boss is perfect for felling small trees, pruning and thinning, and cutting firewood simply and efficiently. With up to a 20 percent increase in fuel savings and a 50 percent reduction in exhaust emissions (when 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 and reduced vibration make the Stihl MS 251 Wood Boss a lean, easy-to-use machine that still packs plenty of power.