12Pcs Masonry Drill Bit Set and Concrete Drill Bit Set, Professional Masonry Drill Bits Set 1/8"-1/2" for Glass/Brick/Plastic/Cement/Wood/Tile/Concrete, Multi-Purpose Carbide Drill Bits Tip

I was very skeptical about these drill bits as I picked the cheapest option. I needed to bore through a porcelain flower pot for drainage. I had tried a normal drill bit and got NOTHING from it. When these arrived, I plugged the fattest one in, and it was almost effortless to go through the ceramics! I drilled four drainage holes in under a minute! I like to give credit where it is due, and credit is due here! I have no idea how they would hold up against a name brand for long term use, but for what I needed, this was the best tool for the job! And now I've got a ton of other bits of various sizes incase anything else ever comes up!

Good! Quality and price.

These bits went through the concrete with little effort

Poor quality, couldn’t efficiently drill through red brick. It took almost 30 minutes to drill a hole. I had to use 3 bits to do 3 holes 2 of the bits were badly damaged to the point they can’t be used again. I think they over heated even after I tried letting them cool down, going slower and swapping bits.

Very good build strong to last. Slow delivery

They were okay for the job but they did go dull pretty quick and I had to use 2 more bits before I was done with the job of 8 holes. Other than that they were okay

Great product

Worked great on my concrete block project.