Patent ID: 6179528
Filing Date: 2001-01-30
Classification: B23B,B23C,Y10T

Abstract:
A rotary cutting tool, comprising:a cylindrical shank having an outer diameter and a distal end;a main body portion located intermediate the shank and the distal end;at least one primary flute formed on the main body portion, the primary flute including at least one straight portion defining a first cutting surface forming an angle not greater than 45.degree. with the main body;at least one secondary flute formed on the main body portion, the secondary flute defining a second cutting surface forming an angle greater than 45.degree. with the main body; andthe primary and secondary flutes intersecting to form a compound cutting surface having a continuous cutting edge including a leading cutting edge formed along at least a portion of the first cutting surface, and a trailing cutting edge formed along at least a portion of the second cutting surface.