A&S TOOLSHOP 5 Pc 5-12MM Diamond Drill Bit Set, 5/32–1/2-Inch Hollow Core, 1/4-Inch Shank, Drill Bit, Ceramics, Tile Drill Bits, Granite, Glass Cutter for Bottles,

About the item TILE DRILL BITS: Diamond drill bits cutting blade with electroplated premium grade diamond and burn resistant braze to deliver more effective performance than traditional carbide or bi-metal hole saws. GLASS CUTTING TOOL: These masonry hole saws have a CNC machined tip to ensure clean, smooth and accurate holes cut up to 3/4” deep with no broken edges. DURABLE: Solid one-piece alloy steel construction with heat treatment and extra thick wall for added durability and long-lasting service when drilling glass, ceramics, and many other materials. GLASS BOTTLE CUTTER: 1/4-inch shank fits all power drills, cuts hard and abrasive materials like glass, fiberglass, tile, granite, marble, stone, and porcelain. TILE TOOLS INCLUDES: This diamond hole saw kit bit set has 5 sizes: 5/32-inch (4mm), ¼-inch (6mm), 5/16-inch (8mm), 3/8-inch (10mm) and 1/2-inch (12mm)