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)

Arrived . I like the tool but I have not used in very demanding challenge so far

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.

Only used it once so far works smoothly and efficiently

Working well.

Fantastic….6” hole in a 12” concrete wall done in 10 minutes with good water flow.

I just got home my package was open and missing parts

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

Impressive. Maybe 25 minutes to drill each 4 inch diameter hole.

Cut nicely into granite boulders using water to lube and keep the bit cool.

Good quality core bit. I used it for Coring holes for interlock project for landscape lights. Works good and did about 45 holes no problems. Good price and quality.

Wasn’t sure how to attach this to a drill but found a socket that fit over the hexagonal end. Bought an adapter to get to a size my cordless drill could fit. - the bit worked good to provide the hole needed in a concrete driveway.

Awesome coring but for the price. I needed it to drill 8 inch concrete. Did the job good and still looks like you can drill another 10 holes. Took me 4 hours but it was mostly because my rotary drill was a little small and kept overheating.

Unless the bit I received was fabricated with the teeth slightly off ??? This bit is not a true 8" core, it cored out at 7-7/8 or 200 mm. Very frustrating when you need precise cores for poke through electrical floor boxes or pipe you will be needing to open the core up ever so slightly. Will be returning as I need a true 8" core bit.