An apparatus is described for aiding in installing locking screws in intramedullary nails when repairing bone fractures. The apparatus includes a long section, a short section, and a removable insert. The long section includes a long radiopaque rod running along a long axis. The short section joins the long section and defines a central channel running through it along a short axis that is substantially normal to the long axis. The removable insert is at least partially located inside the central channel and comprises a short radiopaque rod oriented along the short axis.
