Patent ID: 7140816
Filing Date: 2006-11-28
Classification: B23B,Y10T

Abstract:
1. A milling head for a rotary tool, comprising: a substantially cylindrical body having a central axis and a bore adapted to receive an end portion of a tube, said body having a tool mounting connection adapted to be connected to the rotary tool, wherein the bore extends through axial ends of the body and is adapted to have an arbor of the rotary tool extend therethrough; an inner tube milling element for milling an inner diameter surface of the tube to a depth below the end of the tube connected to the body and having a cutting surface located in the bore; at least two outer tube milling elements for milling an outer diameter of the tube to a depth below the end of the tube connected to a milling element support of the body and each having a cutting surface located a greater radial distance from the central axis than the cutting surface of the inner tube milling element, wherein the cutting surface of at least one of the outer tube milling elements extends past one of the axial ends of the body; and a bevel milling element for milling a bevel on the end of the tube connected to the body and having a cutting surface located in the bore with a portion of the cutting surface located at a greater radial distance from the central axis than the cutting surface of the inner tube milling element.