This battery operated chainsaw from Worx has a ten-inch bar and a 20V battery that works with a variety of Worx tools. This incredibly practical feature allows you to save money on batteries and is accompanied by automatic chain lubrication to keep the chainsaw working like clockwork. The auto tension system is also found in this model and this system prevents the chain from over tightening. The Worx cordless chainsaw also comes with an extension pole that will come in handy when it comes to cutting down stubborn or hard to reach branches. This pole will give you an additional ten-foot reach, so you can get the job done with minimal discomfort. The ergonomic design of the handle also contributes to the comfort factor, especially if you have a time-consuming wood cutting task ahead of you.