Based on this product's specifications, here are some alternatives and similar models
Cutting Disc, Proxxon PR28158, fine-grit diamond-coated 50 x 0.8 x 9.6 mm
Summary description:
Proxxon PR28158 is a fine-grit, diamond-coated cutting disc with dimensions 50 x 0.8 x 9.6 mm. Designed for precise cutting and finishing of hard and brittle materials, it fits compatible mini grinders and rotary tools. Use cases include fine trimming, detailed edge work, and accurate cuts in ceramics, glass, stone and hardened materials.