Based on this product's specifications, here are some alternatives and similar models
Hole saw set Smart365 5–10 mm, HEX, 4 pieces
Summary description:
Diamond hole saw set Smart365 includes four HEX-mounted saws sized 5, 6, 8 and 10 mm. Designed for cutting precise circular holes in materials compatible with diamond cutting edges. HEX shank provides a secure fit in appropriate holders or drills. Suitable for plumbing, electrical installations, fixtures and general DIY when small-diameter holes are required.