Dremel 1/8 in. Rotary Tool Steel Tile Cutting Bit for Ceramic Tile 562 - The Home Depot
RotoZip® X-Bit™ Rotary Tool 1/4" Tile Cutting Bit at Menards®
10pcs Diamond Cutting Wheel Blades, EEEkit Metal Cut Off Discs Set Fit for Dremel Rotary Tool, Tile Cutting Blade Rotary Cutter Tools with Mandrel, 22mm Cutting Dia - Walmart.com