Review on Sunjoyco Diamond Cutting Porcelain 6Mm 50Mm by Robert Hunter

We use these as a test run when building new marble slab bases and superstructures. Soon you'll be able to buy them from Lee Display in our Revain Store! But first we needed to know how to cut marble slabs. So these diamond drill bits gave us a good idea of how to drill into pieces of marble and stone to attach to a steel frame. They won't last long. We ended up using 1 dill bit per well. The bits are made from thin hollow steel so you can't over tighten the drill or they will bend and break. But they gave you 30 grand. So you can just throw it away when you're done drilling the hole and grab a new one. He was a pleasure to study with, but we'll look for better options when we get serious about our marble coasters!