Powerful, easy to use and built for safety, the JawSaw from Worx is electric, so there's no gasoline, no fumes and no hassle. This electric jaw chainsaw features an automatic oiler that provides constant lubrication to both the bar and chain. You can make cuts directly on the ground without fear of kickback or damage to the chain. No more bending over and propping up wood to make the cuts - just put the JawSaw on the wood and push down to extend the bar and make the cut. The auto-tension feature is an easy-to-use chain replacement and tensioning system, with just one bolt on the JawSaw's body that does it all. In contrast, most standard chainsaws require two separate tools to replace and tension the chain or replace the bar. The JawSaw's patented chain tensioning system also prevents over-tightening by automatically determining the proper tension, so you can focus on getting the job done right.