摘要:
An expandable arbor for rotatably mounting an object to a machine tool comprises a mounting portion fastenable to a machine tool spindle and a clamping portion located on the mounting portion. The clamping portion comprises a finger extending from the mounting portion, an expandable sleeve coupled to the finger, and a nut for coupling the expandable sleeve to the mounting portion and for coupling the mounting portion to the rotating spindle. The expansion of the expandable sleeve allows for the clamping of the expandable sleeve to an internal surface of a tool or workpiece.