STIHL® MS 251 WOOD BOSS® 18 in. ChainsawDescription: The STIHL MS 251 WOOD BOSS chainsaw is designed to deliver all the power you would expect from STIHL equipment yet 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 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