🔧 Drill Your Way to Perfection! Max RPM of 11,000 for rapid drilling and grinding. Experience longer service life with advanced vacuum brazing technology. Compatible with angle grinders for effortless operation. Achieve flawless holes with our diamond core drill bits. Perfect for porcelain, ceramic, granite, and more! Diamond finger bit 20mm 5 drill bits (19-51mm) Adapters for versatile use The DT-DIATOOL Tile Hole Saw Kit includes 8 pieces designed for precision drilling in various materials, featuring diamond core drill bits ranging from 19mm to 51mm, a 20mm finger bit, and two adapters for enhanced compatibility. Engineered with durability in mind, this kit is perfect for both professional and DIY projects.