Review on 💎 Ultimate Precision and Versatility: Introducing Diamond Fixture's Adjustable Centering Ceramics by Russ Mashlan

The product arrived in poor adjustment, which has already been shared. The diamond bits were completely unmarked. You will need a micrometer to determine the size. The instructions were a single folded sheet of paper that had been zeroed out so many times that the prints were illegible. Cheaply made, cheaply packaged. I'm only keeping this because I have a hole to drill and it can take so long.