| 摘要 |
<p>A device for producing threaded bore holes of different diameters and different depths in solid material using a standardized tool and using a commercially available hand drill or similar mechanical drive comprises a tool spindle (5) accommodated in a driven spindle housing (15) which can be adjusted axially by means of a screw thread arrangement (19, 20) in a support which can be placed on the workpiece, said spindle being adjustable radially to the centreline of the spindle housing. The device also comprises devices for limiting the tool advance and devices for adjusting the desired diameter of the threaded bore hole to be produced.</p> |
