| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an angle gauge for a drilling device provided with a general purpose bubble type level capable of easily and quickly performing confirmation of an angle and positioning for retaining the drilling device, accurately and quickly performing boring work of a vertical hole or a horizontal hole, and being also used for the existing drilling device. Ž<P>SOLUTION: The angle gauge 1 for the drilling device is characterized in that the bubble type level 3 is fixed to a linear fixing rod 2 inserted to a mounting hole 62 of a gauge mounting part 61 provided on a drilling device body 10. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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