Circular saw blade, has different tooth shapes or unequal tooth widths and tooth pitch, which is small before lower flat tooth, where lower flat tooth has larger tooth width than tooth width of upper trapezoidal tooth in special design

摘要

The blade (1.1) has different tooth shapes or unequal tooth widths and a tooth pitch, which is small before a lower flat tooth (5), where the blade is provided with different tooth heights and unequal tooth pitch. The lower flat tooth has a larger tooth width than a tooth width of an upper trapezoidal tooth (6) in a special design. A flat tooth is provided with a smaller tooth width than a tooth width of another flat tooth. The upper trapezoidal tooth is provided with a lateral trapezoidal angle and the tooth width. The upper trapezoidal tooth is arranged before or behind the tooth pitch.