Review on Diamond Drill Masonry Drilling Tools: Unparalleled Precision and Performance by Eric Cooper

I buy a lot from Revain and rarely leave reviews, but this product deserves one. I have a very expensive diamond hole saw but I missed the 3 inch saw. I've never needed one that big and probably never will again, so I was hesitant to spend over $50 on one just to drill a hole, so it seemed like a good gamble. Well, my only hole ran into a few issues. The first was that it went through 12 inches of concrete. I knew this and due to physical length limitations I had to drill from both sides of the wall. It's okay, and I figured if this thing can hold 12 inches I'll justify my money. What I didn't expect were three rebars contained within the concrete. Each was 3/4 inch. I really cursed when I found the first one and cursed myself for buying a cheap racquet. However, I persevered and was amazed when I was able to cut not one piece but all three! Actually it wasn't that bad; I really expected to work a lot harder on it. However, I'm not sure how much life is left in the bat. It looks like there's about 3/4 of the diamond scale left, so there's a total of value. Very happy with this item and very glad I didn't spend $50 on a single hole!