Brushless (BL) DC motor with high power to weight and size ratio generates less heat buildup and is ideal for heavy-duty applications Active Feedback sensing Technology (AFT) automatically shuts down the tool if there is a sudden drop in rotation speed (e.g. kick-back) Automatic torque Drive Technology (ADT) adjusts motor speed and torque during heavy duty cutting applications for maximum jobsite efficiency and performance LED job light illuminates cutting area Soft start feature gradually increases speed to eliminate start up shock Electronic current limiter prevents motor burnout caused by overloading Electric brake stops blade 2-4 seconds after the trigger is released for increased operator safety eXtreme Protection Technology (XPT) offers maximum protection against dust, debris and liquids for optimal performance in extreme conditions Battery cover protects batteries from water damage in wet cutting applications Lock-off button prevents accidental startup Water supply kit enables