15-Piece Diamond Drill Bit Set – Hole Saws for Glass, Ceramic, Porcelain, Marble, Tile and Granite – Diameters 6 to 50 mm

General Description: Drill bits for delicate materials, ideal for drilling hard surfaces such as glass, ceramic, marble, granite, and tile. This set includes 15 drill bits with various diameters ranging from 6 to 50 mm, offering great versatility for different DIY projects. Technical Specifications: Number of pieces: 15 Available diameters: 6, 8, 10, 12, 14, 16, 18, 20, 22, 25, 26, 28, 30, 40, 50 mm Material: Natural diamond grit, electroplated hardened Application: These drill bits are designed for drilling holes in delicate materials. It is recommended to use water as a lubricant during drilling to prevent overheating. For best results, reduce the drill speed and apply light pressure when drilling. Other information: These drill bits are not suitable for microcrystalline materials. The nickel-plated diamond dust coating ensures excellent performance and cut resistance.