Polisher for professional use: A handy polisher with a powerful 900 W motor and 180 mm wheel. The electronic speed control, pre-set stepped speed dial, and constant speed electronics increase efficiency under load | TECHNICAL SPECIFICATIONS: Maximum Output Power: 900 W | No load speed: 600 – 2100 min-? | Sanding Disc Diameter: 180 mm | Power Supply Cord: 2.5 m | Sound Power Level (LWA): 92 dB(A) | Sound Pressure Level (LpA): 81 dB(A) | Noise Uncertainty (K Factor): 3 dB(A) | Vibration Level (3 axes), Polishing: ? 2.5 m/s? | Vibration Uncertainty (K Factor): 1.5 m/s? | Weight without Cable (EPTAProcedure 01/2003): 2.1 kg | Product Dimensions (L x W x H): 210 x 82 x 220 mm