This Power Tools Core Drill Bit Diamond Brazed Hole Saw Kit Tile Drilling Diamond Core Drill Bit Set M14 35mm x10 is the perfect tool for tiling. It has diamond brazing technology that ensures fast and clean drilling results. It is suitable for drilling into tiles, glass, marble, and other hard materials. This set comes with 10 M14 35mm diamond core drill bits, making it ideal for larger projects. Delivery takes 4-6 weeks from production.