Circle Center-finder

Not much to say here.  Minimal (and perhaps overly so) tool for marking the center in a circle.  Simply line it up, make a line through the rough center - rotate a few times, repeating.  


I use this to drill the center of wooden rounds for making Hadley rocker bases.

In the name of less waste plastic, I'd implore any Hadley users to avoid this unless they're making a bunch.