The WORX WG303 Chain Saw is a robust and lightweight power tool that is perfect for quick, easy jobs around your yard or farm, such as cutting firewood, clearing brush, trimming trees, and more. In addition, the WG303 produces no harmful emissions and has minimal operating costs when compared to gas-powered chain saws. The WORX WG303 is powered by electricity, so it produces no noxious emissions. Different from gas-powered chain saws, the WG303 doesn’t require you to mix oil and gas or deal with difficult startups. And unlike the competition, the WG303 features an automatic oiler that provides constant lubrication to both the bar and chain. Just as all WORX models, the WG303 is equipped with a 6.75-ounce oil reservoir with an oil level indicator.