****** - Verified Buyer
4.5
I was a bit appalled at the price, but bit because it was significantly less expensive than other brands, and it was difficult to find in stock at most places I checked.I decided to install a mini-split unit in order to be ready for the heat wave, so time was of the essence. The job required me to drill through 6" of solid brick. I purchased this and a drill adapter and got to work.There is no pilot bit included in this, so you'll perhaps need some sort of template to keep the bit from walking. I cut the appropriate size hole in the sheet rock and it held the bit perfectly.I went at a fairly easy pace, knowing that heat is the enemy of cutting bits. Several times I even stopped and got on Amazon to MAKE SURE it was a dry bit, and it is.Nonetheless, I drilled in 25 minute intervals, mostly because the drill was getting hot or my arms were tired. About 1.5 hours later I had a perfectly sized core through my wall. I'm sure it could have been done faster, but I'm fairly patient and try to take care of my tools.The bit itself is quite large, far larger than I was expecting. It worked out in my favor, as if it were short then I would have had to core from both sides of the wall, or use an extension which would introduce more problems and wear.It's solid and very well built, other than the paint wearing away the teeth still looked sharp when I was done. I expect this will continue to last a long time.The price, quality, ease of use and easy availability make this a solid buy in my opinion. Good luck on your project!
