Based on this product's specifications, here are some alternatives and similar models
Hole saw AWTools AW43417 — single-piece drill accessory, weight 920 g
Summary description:
AWTools AW43417 is a hole saw designed as a drill accessory for cutting circular holes. The product is a single model AW43417 from AWTools with a listed weight of 920 g. Intended for use with compatible drills, it serves in construction, installation and maintenance tasks where precise round openings are required.