| 摘要 |
<p>The dust extractor is designed in the shape of a hood (1) accommodating the hole saw (2) during operation. The lower edge of the hood (1) is positioned against the wall (4) around the bore (3). The slightly inclined dust outlet (6) for joining an elastic pipe exceeds laterally at the lower area of the device (1), which is fitted with a radial shield (12) inserted between the inner surface (7) and a central ball bearing (13). Three sliding elements (10) joined to the shield (12) can be moved in slots (11) provided at guiding elements (9) protruding form the inner surface (7).</p> |
