SCHÄDELBOHRER
The drill has a retaining device (12) for a drill head (14) with a cylindrical main drill (21) and a sleeve-like drill bit (23), which is axially movable on the main drill. An axial coupling (31) is arranged between the drill head and the retaining device. The coupling is insertable into a skullcap...
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| Format: | Patent |
| Sprache: | ger |
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| Zusammenfassung: | The drill has a retaining device (12) for a drill head (14) with a cylindrical main drill (21) and a sleeve-like drill bit (23), which is axially movable on the main drill. An axial coupling (31) is arranged between the drill head and the retaining device. The coupling is insertable into a skullcap while attaching the drill head, so that a rotary movement is transmitted onto the drill head, and the drill head is disengaged while breaking through the skullcap. The retaining device and drill head are arranged on each other by a detachable rest coupling. |
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