Magnetic Chuck Diameter 30" Maximum Diameter 39" Grinding Wheel Diameter (8 pc SEGMENTED) 18" Variable Magnetic Chuck Speeds Feeds on Head Approximate .004-.080.Per.Min. Grinding Wheel Speed 700 RPM Table Drive Motor Grinding Wheel Motor With Amp Meter 30 HP Dimensions (L x W x H) Approximate 140 X 72 X 98 EQUIPPED WITH: NEWER Neutrofier Magnetic Chuck Controls Solid State W/ Variable Holding Coolant System Power Elevation to Head Wheel Dresser Splash Guards Electrics: 440 Volts 14" Under Wheel------------------------------------------------------------