Features Efficient Dry Drilling Technology: Experience clean and precise drilling on tiles and other materials without the need for water Versatile Compatibility: Ideal for use on marble, granite, clinker tiles, roof ceramics, and plastics, making it a perfect addition to your toolkit Universal Fit for Angle Grinders: Designed to work seamlessly with all common angle grinders, ensuring it becomes an essential tool for every tiler Long-Lasting Durability: Crafted using a specialized vacuum brazing process, this diamond tool offers exceptional longevity for all your drilling projects Multiple Size Options: Includes various drill sizes (20, 35, 40, 45, 50, and 68MM) to cater to different needs, providing flexibility for various applications Features: 1、Diamond core bits are dry core bits that can perform and clean drilling on tiles and other materials without water 2、Hole saw kit is suitable for marble, granite, clinker tiles, roof ceramics, plastics, etc. 3、The tile drill bit is suitable for all common angle grinders, so should be an indispensable part of every tiler's toolbox 4、The drill bit is manufactured with a special vacuum brazing proc. Therefore, this diamond tool has a long service life 5、This is a practical hand tool, drilling size contains 20, 35, 40, 45, 50, and 68MM Specification: Item Type: Hole Saw Set Drilling Size (metric system): Approx. 20mm / 0.8in 35mm / 1.4in 40mm / 1.6in 45mm / 1.8in 50mm / 2in 68mm / 2.7in Fastening Thread: M14 Drilling Depth: Approx. 40mm / 1.6in Drill Bit Length: Approx. 60mm / 2.4in Diamond Height: Approx. 10mm / 0.4in Colour: Black Package List: 6 x Drill 1 x Storage Box Package List 6 x Drill 1 x Storage Box