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

How the Chinese can make this stuff so good and so cheap I have no idea -- but -- getting basically a full set of ceramic drill bits for the Amazon price was amazing -- and -- yes -- they work. I've used one of the medium sizes on three different ceramic coated flower pots and the bit is still good! I have a buddy who was in the building trades who told me there's no way they would cut for that price, and that if they did - I'd have to thrown the bit away after a single use. I guess he bought his at Home Depot. My whole set cost less than one ceramic bit I would have bought there, otherwise.

This Diamond Drill set worked well for my DIY replace shower tiles bathroom project. I was skeptical at first because it only cost $10. However, I didn't want to buy an expensive set for a probable one time use. I needed openings for the shower head, faucet, and water spout. This set was definitely worth the money. Pictures included to show the hardware holes made with these drill attachments. We were not overly aggressive. One picture shows when we cut the holes before install, one picture shows the bottom tile hole on the wall, and one picture shows the top hole on the wall.

For how cheap these are they worked quite well. Cut through glass quicker than a name brand for me

These work great…or at least the bigger one does! That’s all I really needed but decided to get the package in case I need them in the future. It took about 5 minutes to drill two drain holes in a very large heavy ceramic planter. Very impressive. I did watch a video on how to do it, and that helped.

I drilled 7/8" diameter holes in the side of a jar close to the bottom. I made a wooden fixture to hold the jar securely and clamped it to the drill press table. I formed a ring of plumber's putty around the spot were the drilling would take place. I filled the reservoir with about 2 tablespoons of water. I set the drill press speed to 200 RPM and applied very light pressure on the feed handle. It took about five minutes to drill the hole and there was minimal chipping on the inside. I polished the edges with a small stone in a rotary tool.

Worked well especially for the price.

These drill/annular cutters do work very well. I have used them to drill holes in four different ceramic pots. The ones that I have used cut very well. My only issue with these is the damaged one that was in the package of cutters. It was obviously damaged before the chrome coating was applied. So it is a good product for the money. It works well so far. They just have a QC issue in their manufacturing.

Bought these for my aunt. They are sharp and work great. And the fact that they come in so many different sizes makes it even better. I would recommend this product