Tool for drilling and tapping inner side transverse hole

The invention discloses a tool for drilling and tapping an inner side transverse hole. The tool comprises an electric hand drill with a handle cross rod removed, two side rods, a connecting block, a screw rod, a limiting mechanism and a handle, the two side rods are oppositely and fixedly mounted on the peripheral surface of the electric hand drill and extend out of the peripheral surface of the electric hand drill, and two ends of the connecting block are fixed on the parts, extending out of the electric hand drill, of the two side rods; and a bolt hole is formed in the center of the connecting block, the center of the bolt hole and the center of a drill bit of the electric hand drill are located on the same horizontal line, one end of the screw rod is provided with threads matched with the bolt hole and screwed in the bolt hole, the other end of the screw rod is connected with the limiting mechanism, and the handle is fixed to the screw rod. The tool for drilling and tapping the inner side transverse hole i