Luomorgo 75mm/3 inch Diamond Hole Saw, 1.1 inch Cutting Depth Diamond Diamond Drill Bits for Glass Ceramic Marble Porcelain Tile Granite Quartz Gemstone

I use these to cut small holes in glass vases and they work well. Of course I use all the proper safety equipment (safety glasses, dust mask, cut-resistant glove) and I keep the glass and bit wet while drilling. I find that one of these can cut through about 5 glass vase walls (some as thick as 1/4 inch) before it gets dull. It takes some time to drill each hole, but that's the nature of drilling glass. For this price, I can't complain. These also work better than carbide tipped glass drill bits

A fraction the price of big box stores name brands and in my opinion work just as well for DIY. For professional repeated use probably not, but I've used mine a few times and still does the job even thru porcelain and ceramic. You can use the tilt technique, or I prefer to make a jig in a piece of 3/4 plywood with a same sized wood hole saw first, then carefully clamp it to my work. If you can't clamp it, have someone hold it while you get it started. A jig can slide a bit on glossy tile, but with practice it's pretty easy to master. You could probably stick on some rubber cement between the two or a self stick rubber pad to keep it from sliding around. You only need the jig to get the full circular cut started, then it's easy to hold in place without the jig in your way. More accurate than tilt method. I use higher speed on tilt method to get cut going. Seems to move around less than on slow speed. Use a little water to cut easier and save the diamond edge. With both methods, I slightly tilt saw from side to side and in circular motion as I'm cutting to keep it cutting thru. Makes a nice clean hole. Be careful of sharp cut edges.

Good coating!!! Durable Why did you pick this product vs others?: Looked ok

I bought this drill to cut holes in an office desk I bought at a furniture warehouse, so that I could thread my computer wires in from down below the desk, where my outlets are. It's a good product for the price. Worked as well as expected. I'd recommend this product.

When I embarked on the harrowing journey of bathroom renovation, I thought the toughest challenge would be choosing between fifty shades of beige for the tiles. Little did I know, the real test of my DIY mettle would come when I needed to drill a hole through my newly acquired, stubborn-as-a-mule porcelain tiles. Enter the Luomorgo 35mm Diamond Hole Saw - the cape-wearing, laser-eyed superhero of drill bits. The moment it arrived, packaged like the crown jewels, I knew my prayers had been answered. Not only did it promise to glide through porcelain with the grace of a ballroom dancer, but it also boasted the ability to tackle glass, ceramic, and marble - essentially, the Avengers of surfaces. With my drill in hand and the Luomorgo bit attached, I felt like Thor wielding Mjolnir. Spoiler alert: the tile didn't stand a chance. Pros: - Mightier Than Thor's Hammer: This bit goes through tough surfaces like a hot knife through butter, or Thor's hammer through... well, anything. - No More Rusty Business: The nickel-plated surface means it’s more resistant to rusting than my resolve to finish this renovation. - Cuts Like a Dream: The cut was so smooth, my tiles probably didn't realize they'd been drilled until it was over. - Chip Evacuation: The side chip holes ensure waste removal is cleaner than my language when I finally saw the hole. - Wide-Ranging Powers: From glass to granite, this diamond hole saw is like the utility belt of Batman - prepared for any scenario. Cons: - Too Smooth?: The cuts were so effortless, I was momentarily deprived of my DIY war stories. - Addictive: I now wander my house, looking for things to drill holes in. The dog is getting worried. - Water Required: Needs water for cooling, slightly dampening my walk-off drilling fantasies in a cloud of practicality. In the epic tale of my bathroom renovation, the Luomorgo 35mm Diamond Hole Saw emerged as the unlikely hero. Not only did it tackle the daunting task of drilling through porcelain with aplomb, but it also proved itself a versatile tool for a range of materials. It's the Batman of my tool belt, the Thor in my toolbox. With its sturdy build, rust resistance, and smooth cutting capabilities, this diamond hole saw is a must-have for any DIY-er facing their own home improvement odysseys. Just remember to add water and proceed slowly – patience, young Padawan, the Luomorgo does not disappoint. Now, if you’ll excuse me, I’m off to drill holes in everything... responsibly, of course.

These diamond tipped drill bits are perfect. I drilled through a 1 1/4" thick granite countertop in less than 5 minutes to install an Express Water drinking water faucet. I had a glass of water with ice cubes in it, to dip the drill bit in about every half minute. Since the seller gives me 5 for less than $10 including shipping, I used a second one after I was about halfway through the thick granite. This is a great seller, and these are great bits for home installation by an owner.

I would expect I'm not going to get many cuts out of it, but only needed one. It wandered about 1/8 inch not having a pilot bit. I don't need precision with my cut though. Just take your time. Let it cut with the weight of the drill on it. Keep it wet. I would buy it again if I needed to cut glass again.

Dont press in this “drill” or it folds in half . These are a waste of time and money.

Excelente producto, me permitió realizar la perforación fácilmente y mucho más rápido de lo que esperaba.

Not very durable, might go through a relatively soft ceramic tile, but anything thicker than 1/8", waste of time. The diamaonds just peel off and the cylinder overheats and bends.

Makes holes, no problem, just have to make sure to start properly. Maybe a bit at the angle to create some grove. After that is all smooth cutting. And price is great $4 a piece comparing to at least $14 in store

Corte suave, perforó en vidrio en un instante, no se nota desgaste en la pinta de la broca. A mí parecer, ideal para trabajos caseros y semi profesionales

Will eat thru ceramic like buttet, don't forget to start at 45 degrees and you're all set! As you can see in the picture, top right tile was my first try at cutting manually with tile nippers, top left was second attempt (was more careful and used diamond sponge to round the edges) and the tile in the bottom was with this diamond holesaw, worked great!