Based on this product's specifications, here are some alternatives and similar models
Drill bit Irwin HSS conical 30 mm, model 10502458
Summary description:
Conical HSS drill bit by Irwin, diameter 30 mm (MPN 10502458). High-speed steel construction suitable for drilling metals and other materials compatible with HSS tooling. Conical geometry enables step drilling or enlarging holes; intended for use with drills and drill presses. Useful for metalworking, maintenance, and fabrication tasks requiring a 30 mm conical hole.