Long lifespan, more power: the Metabo Marathon motor with patented dust protection, up to 20% more overload capacity, and 50% more torque. Tool-free, quick disc change at the push of a button with the Metabo M-Quick system. Tool-free adjustable guard; can be securely locked against rotation. Best anti-vibration system: integrated auto-balancer for up to 50% less hand-arm vibrations, long machine lifespan, and up to double the service life of grinding discs. Metabo S-automatic mechanical safety clutch: minimizes kick-back when the disc jams to the lowest level on the market – for maximum user protection and efficient work continuation. Gear housing can be mounted in 90° increments for left-handed operation or cutting. Automatic shut-off carbon brushes to protect the motor.