| 摘要 |
A cutting disc core for a circular shaped saw blade which has a circular shaped body which has a center hole and a circular peripheral edge upon which is to be mounted a plurality of spaced apart cutting segments that is to perform the cutting of the saw blade. Surrounding the center hole and formed within the body of the blade is a cut out of a five-sided shape that can be described as a square with rounded corners and with one corner sliced at an angle to leave a fifth side with sharply defined edges. On one or more sides of the five-sided shaped cut out is found one or more pair of radially extending members that together form a break in the continuous shape of the five sided “square” with there being a solid tab that is integrally connected to the body located between each pair of radially extending members. The tab constitutes a frangible seal with the five-sided shape which is formed about the center hole to be removable by being forcibly physically separated from the body.
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