Circular saw
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United States of America Patent
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-
Mar 23, 2004
Grant Date -
N/A
app pub date -
Jul 30, 2001
filing date -
Jan 29, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A side cutting edge of a tip 20 fixed to the outer circumference of a circular saw blade body 11 has a inflexion point K at a portion at which the tip projects laterally to the greatest distance. An outer-circumferential-side portion of the side cutting edge has a negative radial clearance angle of not less than -1.degree. but less than 0.degree. at the inflexion point, and an inner-circumferential-side portion of the side cutting edge has a positive radial clearance angle of greater than 0.degree. but less than -1.degree. at the inflexion point. By virtue of this configuration, a cut surface having a better surface roughness as compared to that obtained conventionally can be obtained in cutting of a soft material such as wood by use of a circular saw.
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