Redlithium HD packs, Superior pack construction provides the industrys best protection against jobsite conditions Powerstate Brushless Motor, Purposely built for the M18 Fuel Track Saw to provide the power and speed to complete demanding applications with finish quality cuts Smooth plunging action for easy plunge cuts Variable speed dial for setting blade RPM to your application Adjustable cam system to allows user to dial in track to rail fitment for laser straight cuts Riving knife keeps materials from pinching on blade and reduces kickback Easy slide depth scale allows for quick and accurate adjustments Onboard allen wrench storage for easy blade changes Micro adjust depth knob for perfect depth setting