Based on this product's specifications, here are some alternatives and similar models
Hole saw Dedra DED1594S10 — 1 piece, metal cutting accessory
Summary description:
Dedra DED1594S10 hole saw, single-piece accessory for drilling circular holes. Supplied as 1 pc, intended for attachment to compatible drills or arbor adapters to cut round openings in suitable materials. Practical for plumbing, electrical installation, carpentry and general construction tasks requiring precise circular cuts.