摘要 |
PROBLEM TO BE SOLVED: To provide a drilling device improving the comfortability of a user, which comprises: a drilling machine (6) including a machine housing (11), a drilling spindle (4), and a drive part (5) connected with the drilling spindle (4); and a drill chuck (3).SOLUTION: In a drilling device, provided is an adjustment sleeve (13) normally connected with a fastening jaw support material (7) of a drill chuck (3) so as not to relatively rotate. The adjustment sleeve (13) can be shifted in an axial direction to switch between a fastening arrangement constitution and a drilling arrangement constitution. In the fastening arrangement constitution, the adjustment sleeve (13) is connected with a machine housing (11) so as not to relatively rotate so that shifting position and attitude of a fastening jaw (10) becomes possible. In the drilling arrangement constitution, a drilling spindle (4) is engaged with the fastening jaw support material (7) so as not to relatively rotate. |