7Pcs 5/6/8/10/12/14/16mm Wax Cooled Dry Diamond Hole Saw Drill Bits for Glass, Porcelain, Tile, Ceramic, Granite and Marble The Most Difficult Surfaces

General description These 7Pcs Wax Cooled Dry Diamond Hole Saw Drill Bits are designed for drilling through the most difficult surfaces, including glass, porcelain, tile, ceramic, granite, and marble. The set includes a range of sizes to meet various drilling needs. Technical specifications Includes 7 drill bits: 5mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm Material: Electroplated emery High temperature quenching for increased hardness Scientific chip removal design for stability Usage Ideal for dry drilling without the need for water Suitable for a variety of materials: granite, marble, masonry, concrete, tiles/ceramics, glass, and hard plastic