40V Cordless power is long lasting for those tougher jobs at home. Automatic tensioning chain system. Chain is routinely lubricated and features an oil level indicator. Lightweight and compact design supports long use. Chain pitch: 3/8”. Chain gauge: 0.043”. Chain speed: 14.8ft/s. 4.5oz Oil tank capacity. Includes: 40V Battery, 40V Battery charger, Chain bar, Chain.