Zinc plated diamond hole saw for glass ,marble or ceramic ]1.Size:2-150mm 2.straight round shank 3.Zinc ... Plated Zinc plated diamond hole saw for glass ,marble or ceramic Zinc plated Diamond glass & tile hole cutter Diameter from ... Saws, are used to drill glass,ceramics, porcelain, ceramic and porcelain tile, limestone, slate, marble, granite, stone, and fiberglass hole drilling . Size ...