| 摘要 |
The invention relates to a drilling tool for undercutting drill holes. On the basis of the object - providing a drilling tool for undercutting drill holes with a simple and reliable construction of the control mechanism for the cutter - in a drilling tool which comprises a spigot connected to the tool holder, a hinged cutter arranged in the spigot and a control mechanism with a control rod guided in the spigot and connected to the hinged cutter, the spigot is assigned a shift-tripping bush with a tripping latch and a restoring spring system, arranged between the shift-tripping bush and the spigot, and in the spigot is assigned a tripping star with a link connected to the control rod.
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