General description The 65mm Diamond Hole Saw Hollow Core Drill Bit is designed for precision drilling in a variety of hard materials including slate, porcelain, marble, glass, ceramic, tile, and granite. Made from high-carbon steel, this drill bit features a clean and smooth opening without broken edges, ensuring stable drilling performance. Technical specifications Diameter: 65mm Material: High-carbon steel Tip finish: Gold-plated for rust prevention Compatibility and accessories Compatible with all electric drills and impact drills. Installation Water lubrication is required during drilling to keep the cutter cool and extend its lifespan. Usage Ideal for DIY projects and home maintenance and repair. Recommended to keep the cutter cool to avoid damage and premature wear.