Unique encapsulated Metabo brushless motor with optimum protection from dust provides quick work progress and the highest efficiency Slim design for prolonged comfort when working overhead or in areas with limited space Paddle switch with dead man function: safe to operate due to an ergonomically integrated non-slip switch Fast brake system for highest user safety stops the disc within a matter of seconds after switching off Metabo Quick for tool-free disc change by means of a quick-locking nut Tool-free adjustable guard; twist-proof Battery pack can be swivelled for better access in hard to reach places Electronic safety shutdown: reduces kickback if the disc stops unexpectedly - for high user safety Overload protection: protects the motor from overheating Electronic soft start for smooth start-up Restart protection: prevents unintentional start-up after battery pack change Detachable dust protection filter protects motor from coarse particles Ultra-M technology: highest performance, gentle charging and 3 years of warranty on the battery pack. The machine shown may differ in equipment and technical details depending on the configuration. Kindly pay attention to delivery scope and product description. Accessories included only if listed in the delivery scope. Characteristics Battery voltage18 V Grinding wheel Ø125 mm / 5 " No-load speed9000 rpm Spindle threadM 14 Weight (including battery pack)2.6 kg / 5.7 lbs Vibration Surface grinding5 m/s² Uncertainty of measurement K1.5 m/s² Grinding with sandpaper2.5 m/s² Uncertainty of measurement K1.5 m/s² Noise emission Sound pressure level82 dB(A) Sound power level (LwA)93 dB(A) Uncertainty of measurement K3 dB(A)