Hi, I am busy making Mr Pete's Wiggler Center Finder. I am really struggling to drill the hole 100% center in the ball bearing. It is always a bit off center, causing the needle not to really run center. I am busy now with my forth try. I tried a jig that is saw on the net, where you basically clamp the ball in a hole just as big as the ball. I uploaded a drawing showing how the hole comes out every time. It is really frustrating because I really need a accurate center finder for the milling machine and I am unable to find the wiggler type in South Africa, that is why i were so glad when i saw Mr Pete's Videos on making a Wiggler. I would really like to work on my accuracy because what is the use having all the expensive machinery and the machinist are not able to work accurate. Any Ideas would be appreciated.