Based on this product's specifications, here are some alternatives and similar models
Diamond drill bit Smart SM-25-080 for stoneware 8.0 mm
Summary description:
Diamond drill bit Smart SM-25-080, 8.0 mm, designed for drilling stoneware and similar hard ceramic materials. The bit provides precise hole-making for installations such as tile fixtures, plumbing penetrations, and electrical conduits. Suitable for use with handheld drills and drill presses with appropriate speed and cooling; recommended for wet drilling to extend tool life.