Variable-speed grinders are perfect for grinding, cutting, and finishing operations on steel, stainless steel, and natural stone/masonry materials. Grinding Disc : 125 mm / 5 ” Rated Input Power: 1550 W No-Load Speed: 2800 – 9600 /min Torque: 4.2 Nm / 37 in-lbs Optimum processing of stone: robust, powerful angle grinder with gear reduction and reduced, adjustable speed for material-friendly working New, patent-pending Metabo Marathon motor with up to 50% more torque and up to 20% higher overload capacity for quicker material removal and longer service life Vario-Tacho-Constamatic (VTC)-Full Wave Electronics with thumbwheel: for work with materials requiring customised speeds, which remain constant under load Now even faster: M-Quick System for tool-free disc change at the touch of a button by means of M-Quick flange nut Tool-free adjustable guard; twist-proof Metabo VibraTech (MVT) side handle for vibration damping for convenient continuous operation Metabo S-automatic mechanical safety clutch: minimises kick-back to the lowest level when the disc jams unexpectedly – for maximum user protection and swift progress Electronic overload protection, soft start and restart protection Gear housing can be mounted when rotated in 90° steps for left-handed operation or cutting Auto-stop carbon brushes to protect the motor