Features:

  • 【EXTREME HARD 】These diamond drill bits are made of industrial grade carbon steel with nickel-plated coated body to resist corrosion. A thicken diamond coating on the tops offers superior cutting strength for maximum drilling outcomes.
  • 【EXTRAORDINARY SHARP】Each diamond hole saw has a smooth and exact finish that lower the incision resistance and drill pressure, increases the sharpness, and effectiveness of water lubrication. Excellent for making clean and precise holes on glass or ceramic and considerably extending drill bit life.
  • 【LARGE CLEARANCE HOLE】These glass hole saw set along the drill bit facilitate the entrance of cooling water and escape of chips and other particles from drilling. Makes the drilling process easier.
  • 【WIDE USAGE】 15 different drill bits included with this glass drill bit set to meet various demands. Perfect for drilling glass, tile, porcelain tile, ceramic tile, brick, and stone.
  • 【 18-WARRANTY】Unconditional 18-month warranty on the diamond hole saw drill bit. The key is SLOW SPEED AND PLENTY WATER.
Lots of Diamonds

These hole saw's are great for boring into hard rock and tile. I use them daily. The price is better than any other seller and the shipping was extremely fast. There is also a large amount of diamonds on each one. Great product, I will buy more if they ever wear out.

works just fine

good kit for the price. add a little water while you use them and they work better

Worked better than expected.

I needed to cut two different size holes in ceramic tile. The local stores charged more than twice as much for one drill bit. I was a little concerned after reading some reviews. I ordered them Saturday morning and received it Sunday afternoon. I made a dam with plumbers putty around the hole to be drilled to fill with water. I started slow, but found it worked better at a faster speed. I cut a perfect hole in a few seconds. It was easier than I imagined. It did the job at a fraction of the cost of my other options. Very happy with the results.

diamond chip drill bits

It did a good job on the tile to be drilled. Keeping the bit well watered I had no problem cutting through the tile. Cleaning the bit off with a wire brush I noticed the diamond chips were still in good shape. I haven't got the foggiest idea what some of these people were having so much trouble with these bits. When in doubt, read the instructions. The instructions are on the add.

Cuts Through Ceramic Pots Effortlessly

I like the way the diamond cut hole saw was able to effortlessly cut through a ceramic pot in order to have drain holes so that I was able to plant a succulent in the pot. I didn’t like the fact that the hole saw had rust on it after the first use & I thought I had purchased a product that said it wouldn’t rust.

How can you pay $12 for 15 hole saws? What a bargain!o

Cuts FAST! How can you pay $12 for 15 saws? What a bargain! Tremendous value! They cut fast and clean. Long lasting! Cuts glass so fast!

Not too bad

Does the job for quick tasks.

Works great. next day delivery.

I had to offset my porcelain sink faucet holes. The sink material was 1/2" thick and tough as tile. I made a guide or jig for the diamond hole saw out of plywood to keep the bit from wandering. Using a low speed and water, I was able to cut a nice straight hole through the sink in a couple of minutes. After two holes the bit showed no signs of wear.

Awesome as Tools, Not Heirlooms

It’s all about expectations with these cheap hole saws. I have bought four different sets of these and all have performed as I expected them to: making at least one cut. Some have pleasantly surprised me with a lifespan of four or five cuts when cutting through ceramic tile, while others have done their one cut through granite and hit the trash bin with no regrets. Just don’t expect to pass them down to your sons and daughters and you’ll be satisfied. As others have mentioned, it’s critical to keep the working surface wet (a spray bottle and helper works great for a horizontal surface), run your drill at a ridiculously slow speed, and don’t use an excessive amount of force. Remember: you’re really grinding here not cutting, so have patience and let the tool do the work at its own pace.

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