| 摘要 |
A circular saw having a saw arm angle adjusting device includes a rotation shaft mounted between the base and the saw arm, and an adjusting device mounted on the base for adjusting the angle of the saw arm, so that the saw arm may be pivoted through an angle and may be positioned. The adjusting device includes a drive shaft, a drive unit, a driven unit, and an adjusting unit. Thus, the user may directly operate the drive shaft, so as to operate the adjusting device for adjusting the angle of the saw arm relative to the base so that the user may adjust the angle of the saw arm easily and conveniently.
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