Customer Reviews for VEVOR Core Drill Diamond Dry Coring Bit 4" with Pilot Bit for Hard Concrete

Drilled one hole with it. Well no I didn't even get one hole with it drilled. It started to fold in on its self had water to cool it wasn't drilling to fast hardly any pressure at all. Wouldn't recommend to any one..

This is a very nice rugged drill but the part of the drill that connects to the drill bits is very unusual. It is larger than almost anything I could find in the way of drill bits. Almost all of the drill bits offered by Vevor are NOT compatible. If you look very closely, there are a couple, but nothing in the size that I wanted. The drill bit that I got is excellent, but it can not be used with this drill. I had to put it on my old hammer drill to get the job done.

Cored 2 holes. Broke teeth on the last. Swells so you can get all the core out of the bit. Disposable bit.

Quality is not as good as I would have liked, but reasonable for the price. I haven't used it yet. I hope that it does the job.

Worked perfectly

Did not cut into the brick wall, it was like the blade was blunt or missing the diamond tips. Crap. Not impressed

au déballage à l'air de bonne qualité, à voir après au travail,car pas encore tester

I have a Vevor 4-in drilling machine and bit great product and I wanted to use this 5-in bit and ordered. It came quickly. I opened it. The product looks very good but unfortunately it was not compatible with my 4-in machine. So please be careful while ordering. This is not compatible with a 4-in machine and you might have to buy a separate drilling machine for this. However, I contacted customer service and they were very great in processing the refund. I haven't used the product but the bit looks pretty solid and it also comes with a free blade.

Looks good can’t wait to use it yet. Got no project but will let my friends knows. Just in case they needed one for their home .

Impeccable pour passer une gaine de 40 dans une dalle, prévoir un bon perfo ( 7 joules minimum car essayé avec 2 joules pas concluant) Très bon résultat, merci beaucoup