| 摘要 |
PROBLEM TO BE SOLVED: To provide a deformed driver for tightening a screw by inserting the screw into a hole of the driver. SOLUTION: The deformed driver has a bulb-shaped or mushroom-shaped grip section easily held with the hand and is provided with the hole in the tip end of it and a magnet 2 in the deepest site, and is used by putting the head of a screw in the hole 2. The head of the screw may be a triangular, rectangular, oval or cross shape. COPYRIGHT: (C)2006,JPO&NCIPI
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