SERIAL ............................... 4A 5904 MODEL ............................ 4A YEAR NEW ......................... 1980 AREA OF BASE ..................... 89" X 50" SPINDLE SPEEDS ................... (36) 12 TO 1200 RPM FEEDS ............................ (18) .004 TO .125 IPR THREADS .......................... 8, 11-1/2, 14, & 18 TPI SPINDLE TRAVEL ................... 20" DIAMETER OF SPINDLE .............. 4" TAPER ............................ #6 MORSE TAPER DISTANCE SPINDLE TO COLUMN ....... 13-1.4" MIN. TO 96" MAXIMUM TRAVEL OF HEAR ON ARM ............ 82-3/4" TRAVEL OF ARM ON COLUMNS ......... 43-1/2 POWER ARM CLAMPING ............... YES POWER HEAD TRAVEL ................ YES POWER ELEVATION .................. YES COOLANT .......................... YES MOTOR ............................ 40 HORSEPOWER