The DeWalt cordless 18V Chainsaw combines the outstanding performance of a DeWalt product with a high-quality 30cm OREGON bar and chain. This model also benefits from a high efficiency brushless motor that can deliver 70 4\'\' x 4\'\' cuts per charge from the included 18V 5Ah battery. This chainsaw also features a variable speed trigger to provide extra control, automatic oiling for reduced maintenance and a durable build for additional reliability. No tools are needed to adjust the chain tension or replace the chain. A big filler opening of the automatic chain lubrication system makes it easy to top it up if necessary.