CNC millng machine SK FMB Face milling holder with SK shank, used in the clamping of the cutter with the radial drive groove, such as the face milling cutter, the vertical disc cutter, the set type end mill, high speed and high precision machining .Mechanical spindle and cutting tools and other accessories.High Precision SK shank Tool Holder ,balanced G6.3 or G2.5 For choose.