JINGLING75mm 3" Diamond Hole Saws Drill Bit Masonry Drilling Tools for Stone Glass Tile

I used this 2.5” hole saw to drill through 1/2” thick ceramic tile with my 3/8” electric drill. I started the hole per the instructions at a 30degree angle to create a half moon in the tile and gradually transitioned to 90degrees. It cut the hole very clean and fast. The photo that shows “63mm” on the hole saw shows the hole saw after drilling the one hole. Not sure how many more holes it would be able to drill. Probably not for professionals but perfect for a DIY small project.

I am so pleased with how well this worked! We used it to cut 3 holes in 3 mirrors. There was some minor chipping of the silvering on the back of the mirror (we did tape the back to try to minimize this) but other than that they are pretty darn perfect. No cracking at all (we drilled very slowly). The minor chipping will be covered by what we're mounting on the mirrors through the holes so it really doesn't matter anyway. We made a small clay moat to help contain the water we poured in while drilling the holes and it worked well. The bit is still in near mint condition and looks like it could cut through many more mirrors without issue.If we took these to a glass shop to have them cut it would have cost way, way more than the cost of this bit. Amazing value. Would absolutely recommend it!

I buy a lot on Amazon and rarely leave reviews, but this product deserves one. I have a very expensive diamond hole saw set but was missing a 3" one. I have never needed one that large and will likely never need one again so I was hesitant to spend 50$+ on one just to drill a single hole so this seemed like a good gamble.Well, my single hole was met with a couple of issues. The first was that it was through 12" inches of concrete. I knew about this one and because of the physical length limitations I had to drill from both sides of the wall. Not a big deal and I thought if this thing survives 12" I will have gotten my moneys worth.What I didn't anticipate was the 3 pieces of rebar contained in the concrete. Each was 3/4". I really swore when I found the first one and cursed myself for buying a cheap bit. However, I soldiered on and was amazed when I was able to cut through not just one, but all three pieces! It was actually not that bad; I really expected to work much harder at it,All this being said, I'm not sure how much life is left in the bit. It looks like about 3/4 of the diamond flake is still left so all in all the value is certainly there. Very well pleased with this item and very happy I didn't spend $50 for a single hole!

I had a dozen holes to make in some cement paver blocks. I made a plywood jig as shown in one of the pictures in this post. I clamped it onto the block with the C-clamp shown. I used a corded drill and wobbled the cutter axis around in a conical pattern, guided by the hole in the jig. The block is thicker than the tool can cut, so I had designed the jig to locate the hole in the same spot when placed on the other face of the block. When the two cuts met, the slug was free and the hole was done. I drizzled water on the cutter as I went to keep it cool, but I had to let my drill cool down now and then, as it was working pretty hard and would get too hot to hold. The tool still has life left in it! I'd like to give it six or seven stars for durability. For the price this was an insane bargain.

Purchased this 2" diamond hole saw to drill through some Zodiac quartz counter top that was removed from a kitchen remodel. Now using the Zodiac in a bathroom and needed to drill a single hole for the faucet. The faucet is actually mounted on a vessel sink. The hole in the Zodiac only for the plumbing. Not only did the hole saw cut that hole very well, it also cut two more where I was cutting out a square piece for the drain. I used a cordless Dewalt drill and applied a constant stream of water during drilling. I'll keep this bit as I'm sure it's got quite a few more holes left in it.

I have been buying the cheaper sets for my aquarium projects. They work well, but go slow and seem to wear out. Have done 6 holes with this one in 1/2 and 3/8th glass. I got clean fast starts and the holes cut quickly. They still blew out on the back side, but that is more likely due to my technique. I would buy this one over the ones that came in a set.

Recently purchased this to cut holes in several stone pavers for plumbing clean outs. Worked like a charm. I did run water during the coring process to reduce heat buildup. Starting the first hole at an angle proved ideal, then working toward the flat grind until the bit cut through the full depth. Would definitely recommend this unit.

When buying this I had no intentions something this cheap looking could do a decent job in masonry. I half expected the diamond tip to rub off instantly and I was hoping to get one hole out of it at most to finish my job. I was soooooo wrong. This thing rips through cinderblock like it was wood. I have used it over and over and it still performs, what a surprise.