| 摘要 |
The invention relates to a method and a device for horizontal drill. Said device comprises a percussion drill and a percussion head (1) which is disposed in an axially rotational manner in relation to the percussion drill. The transmission of the percussion pulses occurs in at least three steps. The percussion head (1) comprises one percussion tip (4), a displacement element (10) for displacing the ground and a base (7) which is connected to the percussion drill.
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