Review on 🔩 Masonry Mgtgbao Cement Polymer Tungsten Cutters for Industrial Drilling Bits by Luis Tuazon

Pretty good bit for cutting holes in tiles. I used them to conduct electricity between floors through porcelain stoneware. They have performed as advertised and have enough lifespan for future use. I had some small "chips" on the top of the tile, but I believe the problem was user error rather than just a bug.