Holman & Stern
Screwdriver structure with illuminating function
 A screwdriver structure with illuminating function wherein a set of battery is disposed into the slot inside the grip handle, a bulb is disposed into the body slot inside the transparent receptacle, and a desired screwdriver is installed in the mouth on said receptacle, so that the bulb can be turned on and off through moving a sliding block in favor of illumination for installing or removing some screws. 
B
B25B
inventional
Tu C. Huo M. Hong L.
Chen Chen Hwaw