| 摘要 |
PROBLEM TO BE SOLVED: To provide a driver allowing improvement of workability in fastening and removing works of a screw. SOLUTION: This driver is provided with a driver bit having an engaging part capable of being engaged to a screw groove formed in a head part of a screw at a tip, a holding part formed with the driver bit to be mountable, a first light emitting body stored in the driver bit, a power source part for supplying power to the first light emitting body and a switch part for turning ON/OFF the power source part. The driver bit has an irradiation part for irradiating irradiation light emitted from the first light emitting body toward the screw and a reflection part for reflecting the irradiation light irradiated from the irradiation part in the engaging part. COPYRIGHT: (C)2009,JPO&INPIT
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