Armeg3/16" PTC Carbide Porcelain Drill Bit

Moderate pressure, Low/medium RPM and Continuous Water Cooling = Good Consistent Results. I'm a builder and porcelain tile has become more of the norm now vs. ceramic. Drilling it has never been fun - but after trying a number of options, these work and last remarkable well. While i prefer my $100+ coring bits, for drilling smaller holes for random hardware (towel bars, hand shower mounts, etc.) these do the job well. They don't go through like butter or really quickly, but they definitely make slow steady progress through the hardest porcelains and keep going. You MUST keep the bit cool and clean, or you WILL melt it = a steady stream of cool water. (I use a 1 gal pressure sprayer). I just finished a job that needed 12 holes and the 12th hole seemed to go as well as the first - worth the price to me. Patience is key, DON'T rush and let the bit do the work. I gave it 4 stars instead of 5 because a 5 star bit in my opinion would do the work in about 1/2 the time... but I'm not sure it that exists?

This tool works great cuts through porcelain tile like it's butter. I highly recommend it to anyone who is wanting to make easy work when drilling through porcelain tile. One caveat though make sure you use a corded High RPM drill. Battery operated drills are just not fast enough.

I had six holes to drill in a quarter inch shower tile for a grab bar. Bit worked great for three holes then started to get dull even with a slow speed and water being added regularly. Compared to other bits I purchased at a local home improvement store this bit worked great and other bits didn’t even start to penetrate the tile.I did find after five holes that the bit seemed to work better if I pulled the speed on and off and changed pressure slightly keep in mind you don’t want to drill at a high speed or with too much pressure. Overall a very good product.

I can get a set of drill bits for the cost of one of these and I had high expectations but it was ridiculous.I was not even going through hard porcelain it was simply marble and with proper water flow and drill speed it took 20 minutes for 1 hole. I then used a $3 diamond bit from Amazon that did the job in 60 seconds per hole for the next 7.Do not waste your money.

Needed to drill 20 holes in porcelain tile shower to install shower, grab bars, etc. Masonry bit slid around and couldn't penetrate tile. This bit can drill through porcelain in about 2 minutes if you regularly dunk it in cold water to keep it cooled. Greatest product ever!

Last time i tried to drill through Porcelain I used a cheap bit from the local hardware store which took 45 minutes to drill one hole.For this project I decided to spend the money on a good bit because I had 6 holes to drill for my shower door installation. Wow what a difference, i had all 6 holes drilled in twenty minutes and that included the time to double check the bit placement and alignment. Actual drill time was roughly 1 minute per hole! Just keep it wet and this thing drills through it like butter..Great product!!

This is the second time I've bought this drill bit. Last year I drilled 3 holes for a wall soap dish and the tip chipped. I thought it was a fluke. This year, another bathroom remodel so I bought another drill bit. 3 holes later another chipped bit, this time on the sides. I was very careful to have water constantly being poured while i drilled. They just don't last ..... check out the pictures of $65 down the drain.

After a few minutes of using this bit, the progress really slows down. Best used in tandem with a Neiko diamond-coated hole saw to speed up your project. This Armeg bit works well for starting or enlarging a hole, but is not fast enough for drilling an entire hole on its own. I tried water cooling it as much as I could, but I think the bit still dulled in just a few minutes.