Based on this product's specifications, here are some alternatives and similar models
Hole saw Bosch Powertools ToughMaterial 105 mm, Expert Range, model 2608900440
Summary description:
Hole saw Bosch Powertools ToughMaterial 105 mm (Expert Range, model 2608900440) designed for cutting 105 mm diameter holes in tough materials. Compatible with power drills and hole saw arbors, it suits trade and DIY tasks like installing pipes, conduits or cable glands. Durable construction from the Expert Range ensures stable cutting performance and reliable results for professional and home use.