| 摘要 |
PURPOSE:To prevent a tendency of curved cutting right or left by providing mutually opposite patterns of saw setting so as to keep balance of right and left saw settings in a whole saw blade, in the sawtooth of a circular saw or a band saw. CONSTITUTION:A saw blade 1 is provided with a first set A grouping five teeth, namely, a spur tooth a1, left set teeth b1, d1, and right set teeth c1, e1, and a second set B grouping a spur tooth a2, right set teeth b2, d2, and left set teeth c2, e2. Further, a third set D similar to the first set A and a fourth set D similar to the second set B are provided. The saw setting pattern of the first set A is a reverse pattern to the saw setting pattern of the second set B. Similarly, the saw setting pattern of the third set C is reverse to that of the fourth set D. |
