| 摘要 |
The present invention relates to a ballpoint pen-type screwdriver, and more specifically, to a screwdriver which is able to conduct three sorts of work. In general, it is hard to assemble or disassemble with only a single screwdriver when you try to assemble or disassemble a machine. Thus, you have to use a different screwdriver to disassemble nuts and bolts, which is cumbersome. The present invention aims to settle the issue by pushing a bump on a screwdriver holder in a single screwdriver. Therefore, the present invention allows the execution of a variety of work with a single screwdriver. That is, three or more axes are used in a single screwdriver holder. The present invention is able to reduce the inconvenience to use different screwdrivers to assemble or disassemble nuts and bolts. In addition, the screwdriver of the present invention is easily kept since its axes are built inside unlike conventional screwdrivers. That is, the screwdriver of the present invention is shorter than conventional screwdrivers. |
