| 摘要 |
PROBLEM TO BE SOLVED: To provide a saw blade capable of sufficiently exhibiting cutting performance by more seriously taking the rectilinear advance of a saw blade and restraining lateral vibration to decrease skew cutting. SOLUTION: The basic configuration of this saw blade has three teeth, a straight tooth SH, a left set tooth LH and a right set tooth RH. The knife edge of one or more teeth of the straight tooth SH, the left set tooth LH and the right set tooth RH is machined to reduce the band width, and the machining face is provided parallel to the tooth crest of the straight tooth SH, whereby rectilinear advance is kept even in the case of abrasion, and the skew in cutting is improved so as to enhance cutting performance. Cutting resistance in cutting can be decreased and rectilinear advance of lancing can be improved.
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