FACHLICH 1-3/8 Inch Diamond Hole Saw for Porcelain Tile Granite Marble Brick

In remodeling two bathrooms with porcelain tile I had to drill a number of holes in the tile for the glass panel supports/clamps. I went through four or five bits and a lot of time drilling for the first three panels. I bought these for the last panel and the drilling was much, much faster and easier. I drilled four holes with one bit and it was still in relatively good shape when I finished.

Worked well for drilling into tile. Long lasting when used with water.

Like all these bits made for very hard material, these wear donw over time. The wax is actually suprisingly helpful and this brand does not wear down as fast as others. I refuse to invest in high end expensive ones because they ultimately wear down too.I use them for drilling holes in ceramic and concrete planters (never come with enough holes IMO), and have done probably 15+ holes with one and can still use it. I also don't mean cheap planters, nice thick ceramic and some very thick cement, even coated ceramic, not a problem.It takes time and patience and a little getting used to, but I can do a hole in a 3/5 inch ceramic planter in less than 10 minutes. If that seems like a lot, it's not, just how these things works. I am using a small but powerful-for-its-size cordless drill.One hint is that sometimes you get more surface friction by going slower. Some people say do the whole thing slow, and sometimes slow is definitely quicker (sounds odd but is true) and sometimes it isn't. When it's not, I have the best luck varying the speed. Coated parts of ceramic (the interior and exterior surfaces) appreciate speed, once you get in to the clay material, slower grinders through it pretty effortlessly.In sum, there are "better" ones out there, but you will have to replace these with regular use in either case, so two for this price is actually better than buying a $30-60 bit that you last a little bit longer.Also, use water. A small spray or squirt bottle (or damp paper towel or sponge that you squeeze, will extend the life substantially. The combo of heat and friction (using without water) wears it down especially fast and makes the drilling slower and less precise in my experience.Please click helpful if you found this review informative or useful. Thank you!

Item was durable and great value for the price.

I attempted to drill a whole through my granite countertop, it struggled and barely got the job done. All the diamond coating came off during the process. I would not recommend this product.

This bit went through a quartz countertop like a knife through butter.

I was able to make a perfect 30mm hole in porcelain tile, which is exactly why purchased this

Not sure on the durability (but it appears fine) as I’ve only used it for one hole so far for a shower head, but it worked very well on porcelain tile.I used a drill press and a few spritzes of water.

They work well

Very good quality for the price when compared to other name brand equivalents. During a bathroom renovation, used this hold saw to cut all openings for shower arm, tub spout and three diverter valves to cut both cement backer board and the ceramic tiles. No performance issues and is still cutting as well at the end of the project. This unit is a little more expensive than some others sold on Amazon, but still half the price of some name brand diamond hole saws.