Joylike 15pcs Diamond Coated Drill Bit Set Tile Marble Glass Ceramic Hole Saw Drilling Bits For Power Tools 6mm-50mm

I ordered these bits to cut a hole on tile for a shower wall. Like some other customer mentioned, the bits do not have a long life but even for a one time use, you cannot beat the price. I bought just 1 bit from a store for twice as much, but had to return it because it was not the right size. Instead I ordered this set, with 15 sizes. For practice, I "sacrificed" a couple of the little ones I knew I was not going to need, and also to start the cut - I did not know how long they were going to last. Once I felt confident, I used the biggest size (the one I needed) and it cut a perfect hole. It took some practice and I was glad I had the extra bits to practice with. I used the size I needed, sacrificed a few in the process, and still have some sizes left for another project. Not a bad deal.

I'm in the middle of a remodel and had a few holes to cut in our new tile on the floor for toilet supply and sink Supply water lines didn't want to spend a lot of money on high-priced diamond hole saws so ordered this product it has accomplished what I needed it to accomplish but overall they wear out fairly quick but for the price it's a great Buy also keep in mind I was cutting through two layers of thin-set and quarter inch tile fairly heavy duty for a lightweight product but they cut through that very well for the money

You know... the only reason I docked one star is because one of the bits is bent. Looks like a manufacturing issue. Wouldn't be a big deal but if you are cutting practice holes in ceramic a bend makes the spin wobble and shatter the tile. BuT for the most part these are great!! Works as you expect!!

I have been making some Pinterest crafts that involve drilling holes in china, glass and ceramic goods. I was using my Dremel with diamond cutting attachment, and a drill with appropriate bits, and holes were taking me 45 minutes or more. It was really driving me away from my projects. I bough these and BAM! Intuitive design means you can just pop em in the drill and get busy. Very quick, safe. I can't rate it on longevity, because I just used them for the first time yesterday. I will update down the road.

Used the 2" bit to cut a hole in the side of two glass tanks to connect them. Held the drill bit in place w a large wet sponge and it cut through nicely- altho it chipped when I was almost through as I was pushing a bit too hard, but the resulting hole was still nice and smooth. I don't think any of the diamond bits came off. Even if I do only get a couple of more uses out of that one bit, it was well worth the price.

it came with all the parts i could ever ask for from this type of set, and they all work great.

I used two of the set for drilling several holes through a 1/4" thick mirror so I could mount a light in the center of the mirror. No evidence of wear after a couple of holes. I had a garden hose running to provide a continuous stream of water. The only issue with the mirror was a small amount of chipping of the coating on the back, but I don't attribute this to the bits, but my technique.I would say, they are hard to beat for the price.

If you do diy projects and don't have these, buy them. These are amazing. Wonderful for drilling pottery. Drop of water and under a minute viola instant drainage hole. Easy to clean, highly recommend these, I bought 2 sets thinking the first will wear out, wrong they are still perfect.