Diamond dry drill Dry Speed. Perfectly suitable for ceramics. High durability in hard ceramics. The Dry Speed diamond dry drill offers a long lifespan for dry drilling in hard ceramics. The high-quality diamond coating allows for high drilling speeds, and the vacuum soldering technology ensures a long service life. For significantly higher drilling speed and durability. Notch for easy removal of the drill core. This product is suitable for tiles – from soft wall tiles to very hard stoneware floor tiles. M14 thread for angle grinders. It is compatible with all angle grinders.