Extreme Protection Technology (XPT) offers maximum protection against dust, debris and liquids for optimal performance in extreme conditions. Battery capacity warning light indicates ideal time to recharge battery. Lock-off button prevents accidental startup. Inertia chain brake provides maximum operator safety if kickback occurs. Toolless chain tension adjustment for quick and easy adjustment on the jobsite. Automatic chain oiler. Metal lanyard hook enables quick attachment to lanyard during climbing or bucket operations. Ergonomic soft rubber grip design for vibration absorption and comfortable operation.