Review on 💎 Diamond Porcelain Granite Marble by FACHLICH by Jimmie Gebrehiwot

When renovating two porcelain tile bathrooms I had to drill a few holes in the tiles for glass top supports/fixtures. I went through four or five bits and spent a lot of time drilling through the first three panels. I bought these for the last panel and drilling is much quicker and easier. I drilled four holes with a drill and when I was done it was still in relatively good condition.