Review on 🏗️ Mgtgbao Concrete Masonry Carbide Plastic: Enhancing Durability and Precision in Construction Projects by Erik Barela

I used porcelain stoneware drill bits, they worked very well, easily made a hole in any fracture. I think they worked even better than what the contractor used. Not sure how durable they are, I've used one of them for 4 holes, the other for drilling and I don't see much of an impact on the drill.