Aug 08, 2018· Internal grinding machine 273A HEALD UNIVERSAL INTERNAL GRINDER Model 273A, New 1970, EQUIPPED WITH: Facing Attachment, Workhead Angular Setting Device, Workhead Positioning Stop, Sine Bar Swivel Attachment with Indicator, Redhead Spindle, 10″ Magnetic Chuck, Variable Speed Workhead, Swing Down Wheel Dresser, Coolant Pump and Tank. Order Now Enquire Now Share on .