2-1/2" Diamond Glass Tile Hole Saw Drill Bit for Ceramic, Marble & Porcelain

Worked surprisingly well. I used it to cut through stucco/concrete exterior wall. I wanted to install a round 4-1/8 receptacle for a security light and this cut the perfect size hole. Not deep enough to cut through completely, but got me most of the way there. I just used a 1/8 masonry drill bit to drill around and finally, a couple taps with a hammer to break through. Had this been about 1/4 deeper inside, it definitely would’ve cut through completely. Go slow and use a spray bottle to keep it wet. I cut two holes in a wall about 1-1/4 deep, still plenty of life left.

First use broke into 2 you get what you pay for

These bits have worked well for drilling holes in flat pieces of glass as well as bottles and planters. Hard to beat for the price! I have only used each bit a few times, so I can’t comment much on the long-term durability - so far, so good though.

Me agrado

Percé 2 trous dans comptoir marbre