Specification Grinding wheel Ø 115 mm. Rated input power 750 W. Output power 450 W. No-load speed 11000 rpm. Revolutions at rated load 7000 rpm. Torque 1.7 Nm. Spindle thread M 14 . Weight (without power cable) 1.8 kg. Cable length 2.5 m. Vibration. Surface grinding 10 m/s². Uncertainty of measurement K 1.5 m/s². Grinding with sandpaper 5 m/s². Uncertainty of measurement K 1.5 m/s². Noise emission. Sound pressure level 88 dB(A). Sound power level (LwA) 99 dB(A). Uncertainty of measurement K 3 dB(A).