Boring Head Shank - MT3

For Midas series machines. The shank is a Morse Taper #3 for mounting in the mill spindle. The shank has a 7/8"-20 thread for mounting to the Boring Head, 47-705, and features a 3/8"-16 thread for attaching the drawbar..

For Granite series machines and stand-alone milling machines. The shank is a R-8 (Bridgeport standard) for mounting in the mill spindle. The shank has a 7/8"-20 thread for mounting to the Boring Head, 47-725, and uses the Bridgeport standard 7/16"-20 thread for attaching the drawbar.