Voltage: 120V ACAmperage: 15.0ANo Load RPM: 6,700Spindle Size: 5/8"-11Wheel Diameter: 6"Powerful Motor Designed To Tackle To Toughest Of ApplicationsEquipped With A Hinged Face Plate With Wing Nut Fastener For Easy Wheel ChangesWire Brushes Can Also Be Attached For Cleaning Rust From Work Surfaces, As Well As Buffing Wheels For PolishingAn Impact Absorbing Tool Rest Is Provided So That The Tool Can Be Set Down Safely As The Wheel Coasts To A StopMay Be Converted To A Tuck Point Grinder By Purchasing The Appropriate Guard And Type 1 Wheel