Luomorgo 2Pcs 25mm/1 inch Diamond Hole Saw, 1.1 inch Cutting Depth Diamond Diamond Drill Bits for Glass Ceramic Marble Porcelain Tile Granite Quartz Gemstone

Great drill bits for drilling holes in glass for a craft project. They worked very well and held up through quite a bit of use.

Worked well once I figured out the best way to hold it on the tile.

I had to drill one hole in porcelain tile for a DIY shower remodel. I didn't want to spend $40-60 if I could use a cheaper saw that likely I'll not use again so I took a chance on this. It worked better than I'd hoped. I was a bit concerned that it didn't have a centering drill, but I was also concerned that the centering bit just added to the stress on the tile and a would be possible source of cracking.I drew a circle in a practice tile and carefully worked my way around the circle to get a starter groove and I kept the groove wet. It worked pretty well and I didn't risk damaging a tile I was going to use.Then I cut the tile to use. Already, the blade didn't seem as sharpe, but slowly and carefully i cut a nice hole.I'd recommend to a DIYer who only needs to cut a couple of holes, but not to a pro who needs to cut a lot of holes. It did work great for me.

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.

Good

Bought this to enlarge holes in a concrete sink and have used it to bore out a blemish in a concrete walkway. No pilot bit was not an issue since starting a hole or bore at a 45 degree angle works great. Still looks new.

Works as advertised.

Impossible to use without the internal drill bit It runs all over the place