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 31.5 in Planetary Motion Control Clockwise/Counterclockwise Horsepower 17 hp Voltage 220 to 240V Accessory Free Tool Change Yes Anti-Restart Technology Yes Anti-Vibration Technology Yes Cord Length Not Applicable Current 50 A Electrical Protection Dust Sealed Engine Brand Husqvarna