For info:
YEAR 1964 Chuck: 42" Diameter Extended Height: 6" up to 28" under wheel Segmented Wheel: 20" Manual Wheel Dresser Wheel Speeds: To 720 RPM Chuck Speeds: 6, 9, 12, 18, 25 & 33 RPM Vertical Feeds Down By Hand Or Power Power Feeds: .004 to .0808" Power Rapid Traverse For Raising & Lowering (Interlocked With Feed) Spindle Drive: 50 HP Neutrol & Rectifier Coolant System: 150 Gallon Capacity Motor Driven Centrifugal Pump 220/440 Electrics AC Motor & Controls Equipped With: External Coolant 3/8" Inch chuck life