Light and narrow body. Smooth start-up. Lockable operating switch for preselected speeds. Constant electronics provide additional power as the load increases. Ventilation protection. Technical information: Nominal battery voltage 18 VPright normal speed (min-1) 1600-6800Rpm finishing (min-1) 1600-5200Grinding wheel diameter 150 mmOrbital oscillation speed 180-780 (min-1) Sound power level (LWA) 94 dB (A) Sound pressure level (LpA) 83 dB (A) Indeterminate noise (K factor) 3 dB (A) Vibration level (3 axes). when polishing 10.0 m / sec²Unspecified vibration (K factor) 1.5 m / sec²Product weight with battery 3.1-3.6 kgDimensions (LxWxH) 530x148x126 mm