Just a simple gizmo to drill holes to depth. My drill press sorta has a depth stop, untrustworthy. Hundred different ways to achieve the end, drill some holes to a measured depth. Do not want to ruin the part having the holes break out into the outer radius. TaDa quick and dirty, little piece of brass stock, using lathe to cross drill for set screws, tapping, love that spiral fluted tap, and finally in the press ready to go. Still haven't got the distance right on the camera> Score camera 1, Me 0