Monster 3/4 in. Brazed Diamond Core Bit/Hole Saw for Granite, Quartzite, Marble, Concrete, Porcelain, Ceramic and Other Stones BDBP0034 - The Home Depot
MILWAUKEE, 3/4 in Core Dia, 15 in Max Drilling Dp, Coring Bit - 45KN72|48-17-3007 - Grainger
EDiamondTools 3/4 in. Diamond Wet Core Bit for Concrete and Masonry, 14 in. Drilling Depth, 5/8 in.-11 Arbor WBP0034A5 - The Home Depot
45 mm or 1-3/4" Diamond Drill Bit | Glass House Store