BRSCHNITT Diamond Core Drill Bit 1pc Dia 6mm-152mm for Ceramic Porcelain Tile GraniteMarble with 5/8"-11 Thread Vacuum Brazed Diamond Hole Saw

I got these hoping to be able to drill some holes through some bottles. they worked great in only took a minute and the hole was complete. I had to drill through about 1"of glass the other day to try to make a lamp.

I purchased these as a “to do” project. I’ve acquired several ceramic/porcelain pieces I wanted to convert to plant pots but pots didn’t have a drainage hole. These drill bits were fantastic and provided the perfect drainage from antique USA, Hull and clay pots pieces. Thank you!!

We bought these to drill some holes in the base of some planting pots. I did succeed in drilling holes so that is something. However, the drill bit that I used looks very worn after about 4-5 pots. I will likely throw it away and use one of the other bits. Luckily there are a lot of them in the package and the price is good considering how many they provide.
It didn't "cut like butter", the pots were thick so I can forgive the drill bits for that, but it was tough to drill through the pots... but it did get the job done.

Bought to try to drill holes in my plant pots. Made it through one but then gave up on the second bc the bit kept slipping. I bought some black carbide masonry bits and those were easier. Saw a post about starting this bit at an angle and then coming straight on so want to try that next.

I wanted to drill a hole in the bottom of a ceramic flower pot and bought this because I could not find a drill bit that would work. I was not familiar with this kind of tool but was very pleased with the result