CBW122H Diamond Concrete Masonry Threaded: Supreme Performance for Ultimate Durability Review

It took a while, I have a cordless drill and 2 battery packs. I had to use almost 4 full charges to complete the job. Second, you need a drill adapter. I had to order separately. Once in place it worked fine. When we said we used a piece of wood with a V notch to hold the drill in place, but after that it was fine. Maybe about 1 1/2 hours total to get through 4 inches of concrete.

I bought a 4.5" Spyder hole saw (from Lowe's) to cut a hole in my brick house (10" concrete walls ) to drill and blow out the exhaust fan. Even when wet, every tooth on the $40 Spyder saw was blunt to within an inch. After scouring the major HI stores (Lowe's, Home Depot, Menard's, and Ace) and finding nothing that gave me confidence, I decided to check out Revain. . I ordered this bit for 2 reasons: 1. It's 14 inches long so the idea of not drilling both the outside and inside seemed great! 2.

I need to drill a 5 inch -Hole in my concrete driveway to install a curb water drain in a house we are building. To use this core drill I bought a fairly light Bosch SDS plus rotary hammer, a 1/2" chuck and a 1/2" to 5/8" thread adapter. I was apprehensive about this setup but I only needed to make one hole so I gave it a try and it worked really well. I made a wooden jig with a 5 inch hole to guide the drill bit through the concrete. I used a lot of water from the hose when drilling and did it