| 摘要 |
PROBLEM TO BE SOLVED: To provide a saw wherein in one side tooth saw not only for cross cut but also for vertical cut an excellent cutting effect can be developed in cross sawing and in sawing back. SOLUTION: A couple 2 of outer teeth to which an outer set of saw teeth is added is provided over the whole length of saw teeth. A couple of middle teeth 4 to which a slightly outward set of saw teeth is added is provided for each specific number of teeth of the couple of outer teeth. Successively a couple of inner teeth 6 to which a slightly inward set of saw teeth is added is provided for each specific number of the couple of outer teeth. Upper eyes 3 and 5 of the couple of outer teeth and the couple of middle teeth are made regular to a sawing direction, and the upper eye 7 of the couple of inner teeth is set reversal to the sawing direction.
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