I have a circuit board that has a hole about 0.140" in diameter. I need to enlarge it fairly precisely to about 0.240". Getting it in the same location (within reasonably achievable error) is important.
I figured I'd do the drilling on the mill. Any advice on the best device/technique to find the center of a hole this size? I've been looking at online videos that use edge finders, wigglers, etc, but they all involve much larger holes.
I figured I'd do the drilling on the mill. Any advice on the best device/technique to find the center of a hole this size? I've been looking at online videos that use edge finders, wigglers, etc, but they all involve much larger holes.