General description This diamond drill bit is designed for dry drilling in ceramic, porcelain, natural stone, and other materials. It is suitable for use with a grinder and is supplied in a blister pack. Technical specifications Maximum operating speed: 14,000 RPM Thread size: M14 Compatibility and accessories Compatible with grinders that accept M14 threaded attachments Installation Attach the diamond drill bit securely to a compatible grinder with an M14 thread Usage Use for dry drilling in ceramic, porcelain, natural stone, and similar materials Operate at speeds up to 14,000 RPM for optimal performance