Abstract: A hole saw has a cup shaped body with a base, and a cylindrical wall with an extending cutting edge. An arbor extends from base. A plurality of teeth are formed on the cutting edge. The teeth having a repeating first and second tooth form. The first tooth form has a rake face and relief face defining the cutting edge. The rake face and relief face are at a desired angle. A first gullet is continuous with the first rake face so that it has a desired depth. The second tooth form has a second rake face and second relief face. The faces are on a desired angle. A second gullet is continuous with the second rake face providing a second tooth height. The second tooth height is greater than the first tooth height.
Type:
Grant
Filed:
December 22, 2004
Date of Patent:
February 9, 2010
Assignee:
Black & Decker Inc.
Inventors:
Markus Rompel, Malek George, Rickey Thomas