| 摘要 |
PROBLEM TO BE SOLVED: To provide a saw blade having excellent strength and cutting precision, and excellent sound eliminating effect. SOLUTION: Slit elements 5 are formed of a continuous single slit to form a specified inner zone on the inner side, a line connecting both ends of the slit to each other by the shortest distance is not crossing the other part of the slit, and the distance is within a range of 5-20% of the whole length of the slit. The slit is provided in a range surrounded by a radius equivalent to 50% of the radius of a substrate, and a radius equivalent to 99%. The slit is composed as an assembly 3 of plural slit elements 5, and each slit for forming the assembly 3 is disposed in such a way that a part of it corresponding to its open apex angle is directed toward the center of the assembly 3.
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