Archer PRO 5” in. Diamond Turbo Core Drill Bit/Hole Saw for Concrete Drilling and Masonry. 14” Drill Depth, 1-1/4” in. -7 Arbor for Core Drill Stand Rig, Dry and Wet Use

Like fast cutting

This core drill bit worked great for my application, installation of a mini split AC system. I had to drill through several walls, which all consisting of concrete and stucco over adobe walls. I also had to drill through sandstone and it worked great there as well. It makes a clean entrance and exit despite the hard yet brittle materials. The only note that I have, when renting the drill from a local rental store, Home Depot in my case, I needed an adapter. Since Home Depot didn’t provide this, I had to purchase that separately. Also realize that if you are renting a drill, you will want to know the insertion end. BI to BS in my case, using a Hilti DD-150-U. My expense came out to be half the price when compared to purchasing a drill that was a direct connection to the drill.

Drilled (1) 2.5” hole through reinforced 6” concrete. Worked great. No issues.

This was listed on Amazon as the only made in USA core drill. I bought it because I didn't want any made in China junk! Upon unboxing the first thing I see is a made in China sticker on it. This is false advertising. I have taken a screenshot of the original advertisement and you will be hearing from my attourney.

Got the job done core drilling thru 8" of reenforced concrete. Drilled (2) holes and the bit stills looks good, paid for itself already!

Work as described.

This is the second ArcherPro bit I bought for a pellet stove install. They work! I had to drill through 12” of granite and mortar, smooth and steady.

I bored a hole through my cinder block wall to install an AC unit. It worked great.

muy recomendable