16 by Eric Mueller

Name: 6-Piece Dry Diamond Drill Bit Set For Granite, Marble, Ceramic, Stone, And Glass With Hex Shank - Ideal For Porcelain Tiles - Sizes Include 3/16", 1/4", 5/16", 3/8", 1/2", And 9/16
Item: 6-Piece Dry Diamond Drill Bit Set For Granite, Marble, Ceramic, Stone, And Glass With Hex Shank - Ideal For Porcelain Tiles - Sizes Include 3/16", 1/4", 5/16", 3/8", 1/2", And 9/16
Rating: 5

July 27, 2023

Used for craft project

I wanted to drill a small hole in the bottom of a bottle for a craft project and though my dremel was a little to small for the task. These diamond bits did a nice job of grinding through the glass and left a nice smooth hole. Using a drill press with slow down pressure worked well and the bit didn't wobble. I will try them in concrete blocks with a hand drill when the weather gets a litter nicer.
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Pros

I use these to drill tile and they work well

Cons

The drill bits get hot easily, making them inconvenient to use for long periods

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