VEVOR Diamond Core Drill, 4"/101mm Diameter Core Drill Bit, 14"/355mm Concrete Core Drill Bit, 5/8"-11 Thread Core Bit, Dry/Wet Drill Core Bits w/ a Blade, Diamond Wet Coring Bit For Concrete Brick

from Demon Camber

Took bite out of high strength well that consisted of 5000+ psi concrete, masonry brick and cinderblocks. It wasn't anywhere close to fast but it got the job done well. Water helped speed up the process but it was extremely messy...The free cutting disk works great too.

from stacy

The bit worked great and was a terrific price. It went through brick and concrete block as described, with several breaks to cool off my hand drill that I used for the project. I would definitely recommend this product for its performance and very competitive price. Be sure to wear a good mask to...

from Steve

Price was great, delivery was fast, great product, thank you very much. Drilled 2 - Two and a half inch holes 13" deep thru poured solid concrete wall. Took about 2 hours. Im very pleased

from Demon Camber

Took bite out of high strength well that consisted of 5000+ psi concrete, masonry brick and cinderblocks. It wasn't anywhere close to fast but it got the job done well. Water helped speed up the process but it was extremely messy...The free cutting disk works great too.

from stacy

The bit worked great and was a terrific price. It went through brick and concrete block as described, with several breaks to cool off my hand drill that I used for the project. I would definitely recommend this product for its performance and very competitive price. Be sure to wear a good mask to...