Bosch HC8521 2-5/8-Inch x 12-Inch SDS Max Core Cutter

I bought a Bosch drill bit because I had previously dealt with this company. I had used their tools, which unfortunately were not as good as other brands and that is why I gave up on them, but the drill bit met my expectations, it is durable, works well in concrete and normally also copes with stone. I drilled holes for mounting fence posts, it worked quite well, small wear after drilling 16 holes in stone. I recommend, it is worth considering

Excelente broca

Been using it on 12" thick old concrete walls (often with fair sized rocks, sometimes used as filler instead of 3/4" or smaller gravel used today.) no teeth have broken and still sharp. If you know what you're doing don't push to hard and let the bit do the work with the right hammer drill. you'll be happy. i am.

Chews through concrete with ease and keeps a sharp cutting edge as expected from Bosch products.

This was a great purchase! I couldn't imagine going back to my old way. I used to drill a dozen smaller holes and chisel out my 5 inch cores. This hole saw leaves a very clean hole in concrete, this makes for a perfect fit. Just make sure you use something else if you run in to rebar

good

Worked great went thur 10 inch brick wall like butter !!

It went through nicely