Patent 7334511 was granted and assigned to Irwin Industrial Tools on February, 2008 by the United States Patent and Trademark Office.
A saw blade comprising a series of teeth at a longitudinal edge thereof, arranged in alternate directions and formed in a tooth shape as defined by a first flank angle, a second flank angle, and a rake angle, is characterized in that the first flank angle lies between approximately 50.0° to 54.0°, the second flank angle lies between approximately 14.0° to 16.0°, and the rake angle lies between approximately 11.0° to 14.0°.