SERIAL .............................. 4A MODEL ............................... 4A AREA OF BASE ........................ 84" X 51" SPINDLE SPEEDS ...................... (36) 12 TO 1200 RPM SPINDLE FEEDS ....................... (18) .004 TO .125 IPR SPINDLE STROKE ...................... 20" TAP LEADS ........................... 8, 11.5, 14, 18 TAPER IN SPINDLE .................... 6 MT DISTANCE SPINDLE CENTER TO COLUMN ... 13-1/4" MIN, 6' MAX VERTICAL TRAVEL OF ARM .............. 56" POWER HEAD TRAVERSE ................. YES POWER HEAD COLUMN CLAMPING .......... YES POWER ELEVATION ..................... YES COOLANT ............................. YES MOTOR ............................... 20 HORSEPOWER