Drill bit replacing tool for electric hand drill

The utility model provides a tool for replacing a drill bit of an electric hand drill. The wrench comprises a wrench body composed of a handle part and an opening part, a nut, a connecting cross rod,a main rod and a replacement head, the two ends of the connecting cross rod are welded into the opening part of the wrench body respectively, the nut is screwed on the cross rod, one end of the main rod is welded to one side face of the nut, and the replacement head is installed at the other end of the main rod. By means of the large lever effect of the wrench, the strength in the using process ofthe tool is saved, meanwhile, the angle between the handle part and the main rod of the wrench can be set through the polygonal nut according to the application environment in the design stage so asto determine the optimal using angle, and more labor is saved, and using is easier. 本实用新型提供了一种手电钻更换钻头工具，它包括由手柄部、开口部构成的扳手、螺母、连接横杆、主杆和更换头，所述连接横杆的两端分别焊接在所述扳手的开口部内，所述螺母拧在所述横杆上，所述主杆的一端焊接在所述螺母的其中一侧面上，所述主杆的另一端安装所述更换头。通过扳手本身具备的较大杠杆作用，节