Based on this product's specifications, here are some alternatives and similar models
Diamond hole saw Expert+ 68 mm with M14 shank, max 12,000 rpm
Summary description:
Diamond hole saw Expert+ 68 mm with M14 shank and maximum rotational speed of 12,000 rpm. Designed for drilling precise circular openings in hard materials such as ceramic, tile, porcelain and stone. Compatible with angle grinders and rotary tools that accept M14 fittings. Single-piece unit intended for professional and DIY drilling tasks requiring abrasion-resistant cutting.