Athenacast Tile Bead. Add a new look and feel to your designs with premium metal beads. These Athenacast Tiles are cast in Zamack metal to produce durable beads. Use them in place of many different Czech glass multi-hole beads in projects to give a modern edge to your jewelry design. Athenacast Tile Metal Beads have 2 holes, measure 6mm and come in a pack of 10 and pack of 50.