| 摘要 |
<p>Disclosed is an insulated magnetic screwdriver, including a shank having a tip at an end or each end thereof and a peripheral groove formed around a central portion thereof so that the central portion of the shank has a diameter smaller than that of each end thereof, a handle having a locking recess into which the shank is fitted and fixedly or detachably locked thereto, an insulator mounted rotatably around the peripheral groove of the shank while having the same circumference to the shank; and a cylindrical magnet mounted around the peripheral groove of the shank to have the same circumference to the shank while being positioned at an end or each end of the insulator to magnetize the tip. Practically, a current-charged screw in a deep narrow hole can be easily loosened or firmly tightened by means of the inventive screwdriver, without the risk to electric shock.</p> |
