The WORX 16” 3.5 HP 14.5 Amp chainsaw is a cut above the rest. For starters, the exclusive WORX patented tool-free chain replacement and auto-tensioning system eliminates the headaches faced with most other chainsaws – no lumberjack experience necessary to operate this chainsaw! The auto-tension system includes a single, oversized knob that automatically secures the bar and chain and maintains proper tension while you’re working. The auto-tensioning system also extends bar and chain life by eliminating any chance of over-tightening. What’s more, all-metal dogs at the base of the 16” bar help add stability during cutting, while an easy-to-lubricate sprocket on the bar nose helps preserve the life of the tool. Powerful enough for your toughest jobs, WORX electric chainsaws produce anywhere from 3.5 peak horsepower. The WORX 16” chainsaw also offers gas-free, hassle-free operation. Different from gas-powered chain saws, this electric chainsaw doesn’t require you to mix oil and gas or deal with difficult startups. And unlike the competition, WORX features an automatic oiler that provides constant lubrication to both the bar and chain along with a 6.75-ounce oil reservoir with an oil level indicator. Designed for safety and comfort, this WORX chainsaw includes a built-in safety chain brake that stops the chain in seconds whenever improper contact is made, protecting you in the event of kickback. Additionally, a rubber over-molded rear handle and ergonomic full-wrap front handle let you work in full control and comfort.