| 摘要 |
<p>The guide is for an electric hand drilling machone, and comprises a ring-shaped base plate for setting on the workpiece which carries two parallel guide rods for a machine holder. On the under side of the base plate is a h ousing shell (11) which is semi-cylindrical, and half-sidedly encloses the tool accommodating space. On the shell (11) upper face end is an outer flange which fits on the underside of the base plate, and on its axial edges has widened, aligned locating surfaces for positioning on the edge of the workpiece to be machined.</p> |
