Patent ID: 6503027
Filing Date: 2003-01-07
Classification: B23B,B23C,Y10T

Abstract:
A cutting tool assembly comprising:a tool shank having a forward end and a rear end and a longitudinal axis passing through the forward and rear ends, an elongated hole having forward and rear ends and extending axially from an opening at the forward end of the tool shank, a forward portion of the elongated hole being formed by first and second non-coaxial, partially overlapping, axially extending cylindrical bores, a threaded securing screw bore extending from a point rearward of the forward end of the tool shank in a direction transverse to the longitudinal axis of the tool shank to the second cylindrical bore; a pull rod, generally cylindrical in shape with a longitudinal axis, the pull rod having a forward end with a forward coupling portion and a rear end with a rear recess; and a cutting head having a forward cutting portion and a rear coupling portion cooperating with the forward coupling portion of the pull rod, the forward coupling portion of the pull rod and the rear coupling portion of the cutting head forming, when in cooperation, a joint coupling region, the pull rod and the rear coupling portion of the cutting head being retained in the elongated hole in the tool shank and secured therein by a securing screw, the securing screw being received in the threaded securing screw bore and engaging the rear recess in the rear end of the pull rod, the forward portion of the elongated hole and the joint coupling region having substantially the same cross sectional forms.