| 摘要 |
A dental device for gripping a dental drill bit includes axially aligned collar, spreader and actuator. The actuator is manually depressed to open the device to enable a drill bit to be inserted therein. When opened, the drill bit is passed through the collar and spreader into a receptacle in the actuator. Depressing the actuator forces the spreader into expandable ends in the actuator and collar. Releasing the actuator with the drill bit inserted in the device allows the expanded ends to grasp the drill bit at two spaced apart locations.
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