Quote Originally Posted by Frank S View Post
Gadgeteer, merely stated the bit drilling the masonry looked like the one he had made for the purpose of drilling holes in dirt to install sprinkler heads. He never made any claims about using his for hard materials. For that purpose, his bit could conceivably drill 100s if not 1000s of holes. Had he needed to drill through masonry or even hard rock he could have removed the carbide tips from a circular saw blade then brazed them to the teeth of his drill, kept his RPMs in check and with a flood of water done equally as good a job as a store-bought masonry core bit
Hi, Frank. I was, actually, elated that my simple drill for removing dirt plugs in order to insert sprinkler heads worked as well as it did. I, always, soaked the small area with water to turn dirt to mud, prior to my drilling. The holes were just a slight bit larger than the diameter of the sprinkler heads, and made the job so much easier. Then, the problem shifted to removing the mud from the inside of the drill bit... but, I figured a way. :-)