Cylinder Type For fast accurate work location. Made from tool steel and hardened all over, they can be used on flat surfaces, straight edges, shoulders, grooves, studs, dowels, centre points and scribed lines.
I planned to use the centre/edge finder in my imperial collets in my old milling machine. The diameter of the two floating ends is the same as the body(0.375”), when I pulled the finder out of the collet the end inside the collet didn’t side out, it stretched to internal spring. If the two floating ends were a few thou smaller in diameter this would’t happen. You can get round this by removing the collet and pushing the finder out, but it is a bit incovenient.