General description A 30mm diamond drill bit designed for efficient cutting through various materials such as porcelain, granite, and marble. This core bit features a dense diamond layer that enhances cutting speed and aggressiveness, making it suitable for both dry and wet applications. Technical specifications Diameter: 30mm Thread: M14 Material: Diamond Compatibility and accessories Compatible with all common angle grinders with M14 spindle. Usage Ideal for cutting ceramic tiles, porcelain, ceramics, natural stone tiles, hard floor tiles, granite, glazed clinker, clinker tiles, hard tiles, plastics, and glass steel. Can be used to adjust the hole size by utilizing the side of the drill for creating oval or wider holes.