Brushless Motor delivers longer runtimes, less maintenance and better power control Versatile application thanks to variable speed for different materials Easy to read scales for accurate angle and depth adjustment Accurate precision cutting when fitted to a guide rail BSL36B18 MultiVolt Li-ion battery 4.0Ah/8.0Ah Automatic Switching System - Intelligent circuitry changes voltage automatically to power all 18V and 36V HiKOKI tools. 36V nominal voltage and up to 41V after charging allowing the batteries to deliver the power to increase productivity and efficiency. Intelligent electronics ensures constant communication between tool, battery and charger to prevent overload, overheating, overcharge and overdischarge for longest battery and tool life. Improved water .