I have found a sharp 7″ circular saw blade. It is clearly marked "max rpms 5,400" and I have attached it to a weed eater with a max rpm of 12,500. Why should this matter? To make it interesting, the shaft diameter is smaller than the hole in the blade so I imagine I might get some wobble. There is no safety mechanism to keep the blade from being thrown. My legs will only occupy roughly 35 degrees of the circle so if the blade gets thrown there’s a good 325 degrees left for the blade to fly into safety. Of course, I’ll be pushing the blade into brush so that probably increases the chance that the blade will come back toward my ankles. We’ll see. Next post from the ER.