B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
B23B 51/04 (2006.01) B27B 33/02 (2006.01) B27B 33/18 (2006.01) B27C 3/06 (2006.01) B27G 15/00 (2006.01)
Patent
CA 2529242
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.
George Malek
Rompel Markus
Thomas Rickey
Black & Decker Inc.
Blake Cassels & Graydon Llp
LandOfFree
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