A distal targeting device for a surgical instrument includes a field generator having a coupling element configured to receive a shaft that is elongate along an axis and a bridge connectable to the field generator so as to be spaced from the field generator in a proximal direction with respect to the axis. The bridge includes an attachment device that is connectable to a tool that is configured to manipulate the shaft. The bridge also includes a pair of arms configured to clasp a body of the tool in a manner substantially rigidly coupling the bridge to the tool. At least one of the arms is positionable with respect to the attachment member at a distance that is adjustable so as to enable the arms to substantially rigidly clasp tool bodies having one or more of various shapes and sizes.
