The stratosphere (/ËstrÃ¦tÉËsfÉªÉr, -toÊ-/) is the second major layer of Earth's atmosphere, just above the troposphere, and below the mesosphere. About 20% of the atmosphere's mass is contained in the stratosphere.
The chainsaw is a highly effective and efficient tree and branch cutting power tool. It works with an engine, referred to as a power head; powering a metal chain, driven by a centrifugal clutch, with a chain moving around a groove in the guide bar at fast speeds.
If we were buying a chainsaw ourselves, we'd spend the extra money and get the Husqvarna 450. The 18 inch chainsaw is perfect for landowners because it has a smart start system that makes it a breeze to get started with. It has a 3.2 HP motor and will be up to the task for most jobs you throw its way.