Brushless motor, high overload capacity and 4 mode power selection are all features of this cordless impact wrench The HiKOKI WR 36DB brings together the combination of a high power output Multi-Volt Battery and high efficiency Brushless Motor which delivers power and torque equivalent to an electric (AC) model. HiKOKI is the new brand name for Hitachi. With a Tightening Torque of 1050Nm to the 1/2 Inch / 12.7mm square drive and a runtime of approximately 95 high-tension bolts per charge. The WR 36DA has a unique design of dust-protective cooling windows and fully plastic coating on some important inner parts which conforms to IP56 protection class ratings (dust and water resistance). Sold with 2 x BSL36A18 36V Multi-Volt Batteries 2.5Ah (18V = 5.0Ah) and UC18YSL Charger in a Carry Case. Features: High efficiency brushless motor Batteries are compatible with existing Hitachi 18V tools High overload capacity Huge tightening torque of 1050Nm (hard) 4 mode power selection IP56 rating for dust resistance & waterproofing Electric brake 3 mode LED worklight: always on/automatic/always off Rubber nose protector Forward & reverse switch Multi-Volt Batteries: 36V Multi Volt batteries for higher power output similar to mains powered tools Batteries are compatable with existing HiKOKI 18v tools Offers unprecedented power output of up to 1080W Power output similar to mains powered tools when used with a 36V tool Automatically switches between 18V and 36V depending on the tool in use Fast charging - only 32 minutes with UC18YSL3 charger 4 stage battery level indicator with diagnostic function Compatible with existing 18V chargers and the new UC36YSL Compact and lightweight - similar size and weight as existing 18V 5Ah & 6Ah batteries Comes With: 2 x BSL36A18 36V Multi-Volt Batteries 2.5Ah (18V = 5.0Ah) UC18YSL Charger Large side hook which can be fitted on right or left Carry Case Specification: Square Drive: 12.7mm (1/2\") Tightening Torque: 1050Nm (812ft-lbs.) Battery Voltage: 36V No Load Speed: High Mode: 0 - 1,500/min Medium Mode: 0 - 1,200/min Low 2 Mode: 0 - 900/min Low 1 Mode: 0 - 600/min Impact Rate: High Mode: 0 - 2,900/min Medium Mode: 0 - 2,300/min Low 2 Mode: 0 - 1,800/min Low 1 Mode: 0 - 1,200/min Overall Length: 221mm Vibration emission: value ah: 15.4m/s2 Uncertainty K: 1.5m/s2