Based on this product's specifications, here are some alternatives and similar models
Diamond Brazed Hole Saw Dedra DED1592S20 M14 20 mm — vacuum-brazed cutting cup
Summary description:
Diamond brazed hole saw Dedra DED1592S20 with M14 thread and 20 mm cutting diameter. Vacuum-brazed diamond abrasive on metal body provides precise drilling in hard materials such as tile, ceramic, porcelain and stone. Designed for use with angle grinders or rotary tools with M14 arbor for creating clean circular holes in construction and renovation tasks.