• ✔ Satisfied Size - 6mm/0.23", 8mm/0.31", 10mm/0.39", 12mm/0.47", 14mm/0.55", 16mm/0.62", 18mm/0.7", 22mm/0.86", 26mm/1.02", 32mm/1.26"
  • ✔ Ideal Application - This diamond coated core drill bit removes a complete circle from glass, marble, tiles,granite, ceramic or other.They are perfect for drill glass, tile bottles,blocks jars, fiberglass porcelain tile ceramic, slate Mable, granite light stone
  • ✔ Super Material - These diamond drill bits made of high-speed steel that is durable and have a long sevice life,which are high quality and good performance that excellent for making clean and accurate hole.
  • ✔ Sharp&Smooth Cut - Coated with high quality diamond, the diamond hole saw creates a high precision, smooth cut with no broken edges. Reduced drill speeds, low drill pressure and increased use of water lubrication will extend drill bit life considerably
  • ✔ Note - When you using the diamond drill bits, please use lubrication (water),otherwise the diamond core drill will burn.Not for use on Concrete or for depths beyond about 1/2".

I bought these to put holes in some glass blocks for my daughter. These work great I drilled 12 holes with one bit and it still cuts good. When you use them just keep water on them to keep them cool and last longer.

We used these to cut our tile and they work great! My husband was very impressed. He pushed a little to hard at the end and a tiny bit extra broke off the back. My crafty brain sees many more possibilities for this tool.

Works great! Came with a large variety of sizes and good quality for the price. Bought it to drill holes into pots/ ceramic mugs to use for plants. Used water the entire time as insteuxtwd. Very satisfied

My sister wanted some bottles drilled to make ornamental lights out of them and this made the job a simple one. I used tape on the bottle to keep the bit from walking, and ran it under the faucet to keep it cool and I was 100 percent successful drilling 6 bottles of various sized and thicknesses.

Seem to be great product for a great price. I returned them because I purchased the wrong bits

I had to drill through a half inch ceramic tile to mount an electrical outlet. These drills worked perfectly. I drilled four corner holes then used a ceramic saw blade to cut between the holes. The diamond drill bits worked perfectly.

You can not beat the value... These Diamond Drill bits do what they are supposed to do! They are perfect for cutting holes in glass... I have been using them for over month to cut holes in wine bottles, with out any complaints.

Bought these so that I could modify some glass containers for a DIY cold drip coffee tower that I made. The basic process that I went through for the cutting included: -Using a water filled soda bottle with a small hole for automatic lubrication while cutting -Then taping on a piece of plywood with a hole the size of the drill bit to help start the cut -And when cutting, to apply little pressure, and rotate the drill slightly And I'm very happy with the resulting quality of the cuts for the cost that these drill bits were! I didn't have any cracking or chipping of the glass containers that I cut, and the holes worked great for my needs

Nice set of holes saws, for tile or stone. I recently remodeled my bathroom and used tile on the walls. I had to buy these to hang the mirror. It cut through tile nicely. I used a water spray bottle to keep the bit cool, not sure if that is required. Plenty of different sizes, included what is needed for a shower drop elbow.

I cut a few holes and it worked good.