Concrete Floor Grinder Operation Walk-Behind Drive Type Planetary with Dual-Drive Number of Grinding Discs 3 Grinding Disc Diameter 10 1/2 in Grinding Width 25 in Planetary Motion Control Clockwise/Counterclockwise Horsepower 17 hp Voltage 440 to 480V Accessory Free Tool Change Yes Anti-Restart Technology Yes Anti-Vibration Technology Yes Cord Length Not Applicable Current 30 A Electrical Protection Dust Sealed Engine Brand Husqvarna