Worx WG303 16" Electric Chainsaw The WORX exclusive, patented tool-free chain replacement and auto-tensioning system eliminate the headaches faced with most other chain saws. You don't need to be a lumberjack to operate a chainsaw. The auto-tension system includes a single, oversized knob that secures the bar and chain and maintains proper tension during operation--automatically. The WORX auto-tensioning system also works to extend bar and chain life by eliminating any chance of over-tightening. Different from gas-powered chain saws, our electric chain saw doesn't require you to mix oil and gas or deal with difficult startups. And unlike the competition, the WORX features an automatic oiler that provides constant lubrication to both the bar and chain. Each WORX chain saw is equipped with a 6.75-ounce oil reservoir with an oil level indicator. Worx WG303 16" Electric Chainsaw Features: As powerful as a gas chainsaw Auto tensioning technology, the chain mechanism prevents over-tightening and stays at the right tension for hundreds of uses Loaded with safety features such as a low kickback bar and safety chain stop Auto chain lubrication Produces no harmful emissions 6.75 ounce oil reservoir with an oil level indicator Rubber over molded rear handle and ergonomic full wrap front handle provide optimum operator control and comfort Includes chainsaw, one scabbard and one quart of chain oil