THIS SUMMIT GAP BED ENGINE LATHE, MODEL 20-4 X 80, FEATURES A 20-1/4 INCH SWING OVER THE BED, A 27-5/8 INCH SWING OVER THE GAP, AND AN 11-7/8 INCH SWING OVER THE CROSS SLIDE, WITH AN 80-INCH DISTANCE BETWEEN CENTERS. THE SPINDLE IS DRIVEN BY A 10 HP MOTOR AND PROVIDES 15 SPEEDS RANGING FROM 11.5 TO 1400 RPM THROUGH A 4-1/8 INCH HOLE. THREADING CAPABILITIES INCLUDE 64 INCH THREADS FROM 1/4 TO 60 TPI AND 64 METRIC THREADS FROM .5 TO 120. THE LATHE SUPPORTS 124 LONGITUDINAL FEEDS FROM .00145 TO .44474 AND 56 CROSS FEEDS FROM .0007 TO .22237. CROSS SLIDE TRAVEL IS 11-3/8 INCHES, COMPOUND REST TRAVEL IS 5-3/8 INCHES, AND TAILSTOCK SPINDLE TRAVEL IS 9-1/2 INCHES, WITH THE TAILSTOCK SPINDLE HAVING A NO. 4 M.T. TAPER. THE BED IS 15-3/4 INCHES WIDE AND FEATURES HARDENED AND GROUND BED WAYS. EQUIPMENT INCLUDES A 10 INCH BISON 3-JAW CHUCK, A STANDARD STEADY REST, A TAPER ATTACHMENT, A THREAD DIAL, A TAILSTOCK, AND A COOLANT SYSTEM.