Diamond Drill Bits Set, 10 PCS Diamond Hole Saw Set, Glass Drill Bit for Ceramic Tile Porcelain Marble Granite Stone Bottles

I was skeptical because they were so cheap in price but when I got them and used them on porcelain tile which is very hard they worked perfect very impressed

My wife wanted me to make some cake/food trays from a teacup set or 6. Long story short, these bits with a little bit of water really helped get me operating like a factory. This set saved me hours of frustration by cutting efficiently and smoothly. Check out my work.

Worked out great pretty sturdy and durable

I bought these drill bits to add drainage holes to a small collection of ceramic and clay pots that I've accumulated over the years. Some are small - think 2" individual cacti and succulent pots-- a few in the 8-10'" range, and one 16" monster with walls an inch thick. I'm happy to report that all now have cleanly cut drainage holes, and that it took no more than a minute each for all but the big one, which nonetheless took only a few minutes with the one inch bit. It's crucial to follow the two pictographic instructions: 1) Start the hole with the bit at a 45 degree angle to the work surface and once it "bites" return to 90 degrees, and 2) keep the bit wet. When first starting, keep the drill speed low, and use both hands to hold it in place, as the bit will want to walk. I gave these 3 stars in the durability category only because while the 1" bit did its job, it is now completely worn out and in the trash. That said, these are inexpensive, they work just fine for my needs, and I wouldn't hesitate to buy them again.

I bought a bunch of small flower pots at an estate sale but they didn't have drainage holes. These worked perfectly and now I have more little pots to display in the summer.

cheap set

It works okay for 3 holes into granite or quartz countertop, but broke on the fourth. Not meant to last like other known brands, so you get what you pay for.

Good quality....work good with water.....nice.....

Fast postage and great deal. The bits work really well.

Got these to expand a bathroom sink faucet hole to fit some faucet and this did the job easily, no damage at all after a few use and for the price it's well worth it. It will expand existing holes on ceramic with ease.

Brocas de excelente calidad y muy utiles

Follow the instructions and you will be able to put a drainage hole in the bottom of that ceramic pot easily.

For $7 you can’t complain! I got these bits so I could drill into an old candle pot that I had been using as a plant pot, but it needed a drainage hole. Went write through with ease, but I recommend sanding it first before drilling so the stone tip bit can grip it!