Metabo Long-life motor with patented dust protection for long service life. Highest user safety with mechanical disc brake and deadman switch: disc stops in 2.5 seconds after release, even during a power failure. Electronic safety shutdown of the motor reduces kickback if the disc stops unexpectedly- for high user protection. Rotating main handle and side handle can be mounted in 3 positions for optimal handle position, even while cutting. Tool-free adjustable guard; twist-proof. Starting Current Limitation with Soft Start prevents fuse being tripped upon start. Electronic overload protection and restart protection. Metabo VibraTech (MVT): integrated damping system and side handle to reduce vibration in order to protect the user.. Metabo safety switch prevents unintentional start. Auto-stop carbon brushes to protect the motor. LED signal on triggered restart protection or overheating