5 Inch Wet Core Drill Bit, 5" Core Bits for Concrete, 14" Drilling Depth, 1-1/4"-7 Thread Diamond Core Drill for Cured Concrete, Hard Masonry, Brick Block, Solid Cement, Stucco, Stone (127mm)

We have started using these core bits with a hope and a prayer and so far they worked out extremely well for some large jobs that they have been used on. No complaints regarding quality or premature failure and we know core drills are highly abused on rentals on job sites. So far so good.

Worked great and was deliver the next day!

Great core drill. 18 holes through an 8" block pored solid, and still has teeth at 50%. Half the price of name brand!!!

I drilled 26 hole that ranged from 6” to 9” in concrete with rebar before had to get a new one. I did buy the same one.

Used one time and teeth bent and broke off. Spend a few dollars more on a better product

Long lasting and built strong. Great value for the money!

I bought the 2.5 inch core drill to make a hole for a 2 inch pvc pipe through the floor of my basement. Then I installed a Vivosun ducted fan to use as a radon pump. Works great and very cheep. It took probably half an hour of drilling to go through an 8 inch slab of concrete (with wire in it) using a battery powered drill, but it did the job. I used a water bottle to keep water in the hole and wash the mud out. Didn't take much water to keep the bit cool at the slow speed I was drilling.

So far so good… Drilled 3 holes so far and it has worked very well and seems to be made very well. Obviously use it as you are supposed to and use water, otherwise the bits won’t last. And drill at a steady slow speed. Good value for the price compared to my local hardware store who wanted over $200 for one.