Adaptable Drill Guide

The tool shown in the figure is a drill guide that can adapt to a curved or flat surface. The main function of the adaptable drill guide is to keep the axis of a drill perpendicular to the surface at the location of the hole to be drilled. The tool can also be used to guide a reamer into a drilled hole, to control the depth of drilling or reaming, and to guide tools other than drills and reamers. With simple changes in dimensions, the basic design of the tool can readily be adapted to drill bits and reamers of various diameters.