| 摘要 |
<p>An attachment for a drive shaft of a drill or like rotary tool is provided. The attachment comprises two tool bit holding means (1, 3), one (1) being for connecting with the drive shaft (7) and for holding one tool bit (17) and the other (3) being for holding the other tool bit (33), each of the tool bit holding means (1, 3) being releasably interconnectable with the tool bits (17, 33) in place, and, in use, so drive can be imparted from the one (1) connected with the drive shaft (7), to the other, the interconnection being such that the tool bit holding means (3) can be fitted to or removed from the other (1) depending on which tool bit (17, 33) is required.</p> |
