Review on JOERIC Masonry Industrial Cemented Plastic by Chris Bowden

Media could not be loaded. It took me just over a minute to drill through a 2" thick rock (see standard bit, not impact bit. The hole was clean, even on the back side (no spit). Most conventional hole saws in concrete with an impact bit do a pretty good job rough hole. I was able to put a 3/8" screw in the hole and it went in nice and neat, although the 10mm is slightly larger than the 3/8". I plan on using these bits to secure a few Shelves and a mantel in a brick fireplace. I have about twenty 3 8" anchors to install. These bits are definitely up to the task. A cleaner hole should make the anchor more secure. An innovative little carry case is included to protect the bits It slides out and then folds down for you to remove See photos It works well but the initial sliding part can be a little stubborn The bits seem well made e.g u be without any visible flaws The material feels very tough and professional chnym. Dust and dirt come out of the hole very efficiently. Hex shank means no slipping. All in all a good set of beats. They are designed to make a clean hole and require no punch. The price is very reasonable for a 5-piece set including a practical and innovative carrying bag.