Based on this product's specifications, here are some alternatives and similar models
Grinding wheel GRAPHITE 55H761 for rotary tool — wood, 80 mm diameter, 6 mm shank
Summary description:
GRAPHITE 55H761 is a single-piece grinding wheel designed for rotary tools, intended for shaping and sanding wood. Core specifications: 80 mm diameter, 6 mm shank, weight 154 g. Suited for deburring, profile sanding and surface preparation on wooden workpieces. Supplied as 1 piece per pack and fits standard 6 mm collets.