Based on this product's specifications, here are some alternatives and similar models
Reamer Set Wolfcraft WF4375000 – 8, 12, 16 mm with Ejector and 6‑mm Hex Shank
Summary description:
Wolfcraft reamer set WF4375000 includes three reamers sized 8, 12 and 16 mm designed for creating clean countersinks and enlarging holes in wood and similar materials. Each tool has a 6 mm hex shank for secure fitting in drills or drivers and an ejector mechanism to remove chips and cuttings. Suitable for furniture assembly, joinery and on-site drilling tasks.