5/16 Diamond Drill Bit 5/16 in 3 Pack for Porcelain Tile Drill Bit Glass Drill Bit Diamond Tip Bit with Core Guide to Hold in Place and Prevent Jumping 8mm Porcelain Drill
Marshalltown 5/16-in Wet/Dry Diamond Core Drill Bit in the Diamond Core Drill Bits department at Lowes.com
Milwaukee 5/16 in. Carbide Tipped Drill Bit for Drilling Natural Stone, Granite, Slate, Ceramic and Glass Tiles 48-20-8993 - The Home Depot
5/16" Cement/Tile Masonry Drill Bit (For Included Concrete Anchors) - Nightlock Door Security Devices
Grab Bar Installation Tile Drill Bit 5/16 - Mr. Grab Bar
Drill America 10-Piece 5/16-in 2-1/2-in Carbide Tipped Right Handed Glass and Tile Drill Bit at Lowes.com
ARTU, 5/16 in Drill Bit Size, 4 1/2 in Overall Lg, Porcelain Tile Starter - 38A243|01440 - Grainger