Based on this product's specifications, here are some alternatives and similar models
Makita D-44448 Diamond Core Bit 16mm with M14 Connection
Summary description:
The Makita D-44448 is a high-quality 16mm diamond core bit designed for precise drilling in hard materials. Featuring a standard M14 connection, it is compatible with angle grinders, ensuring efficient performance and durability. This professional-grade tool is ideal for clean, accurate holes in tile, stone, and masonry, making it an essential accessory for construction and renovation tasks.