| 摘要 |
The present invention relates to a screw driver capable of tightening and loosening a screw spike in a place where the visual field of the screw spike is hidden. The screw driver according to an embodiment of the present invention comprises a body portion, a reflecting body, and a joint. A grip portion is formed on one end of the body portion and a first connection part is formed in the other end thereof, wherein one part thereof is banded by a predetermined angle. The reflecting body is attached and detached to the body portion. A second connection part is attached and detached with the first connection part in one end of the joint and a tip is bonded to a head of the screw spike in the other end thereof. |
