Diamond Dry Drill Bit Set Robust Line Easy Dry. Best for ceramics. Easy drilling without water in ceramics for outstanding drilling results. The Easy Dry diamond drill bits make dry drilling in ceramics simple. The integrated coolant reservoir ensures consistent performance, and the robust, wear-resistant, vacuum-brazed diamond coating makes work easier. The drilling depth of 33 mm also allows for comfortable drilling of tiles of any thickness. This product is suitable for a variety of materials – from soft wall tiles to hard floor tiles and fine stoneware. It is compatible with all cordless drill drivers and features a chuck size of 13 mm. A robust and compact set in a transparent storage box that provides both a good overview and secure storage and transport. Note: Drill without impact. Optimal speed 1500 RPM.