3" Inch Pro Series Diamond Wet Core Drill Bit 1-1/4” Threaded by BLUEROCK Tools for Concrete Rebar Asphalt Brick Rock Masonry Hole Barrel Coring

I’ve had good luck with Bluerock core bits, but not this time. Poor brazing. You can even see rust inside of the joint. They sent me a return label, but it’s still a pain in the butt to return.

In combination with matching drill system cut three holes in 9” concrete with rebar and was still in good condition.

Works well.

Not a bad bit for cement or concrete. Struggled in hard field stone.

Work fine for our plumbing company. Moderate use. May now be the best for commercial coring company's but we have had good sucess with these bits so far.

If 1 tooth wouldn't have fallen off even before starting project , I would have giving it 5 stars, great product regardless Still gets the job done, but by not having that missing tooth sooner or later it will collapse. When it could have gone longer if it was working at its fullest.

keep water on them and these blast right through with little effort,excellent product and priced right.

Works as promised!!