Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? The MS 391 engine size and horsepower jumps 25%, or more, over typical 20-inch saws.
Stihl is often recognized as an innovator, especially when it comes to chainsaws. The company's first gasoline-powered chainsaw, the "Tree-Felling Machine Type A," was released in 1929. It had a ...