Based on this product's specifications, here are some alternatives and similar models
Cutting Flame-Tip Countersink Dedra H12×32 mm, 6 mm Shank
Summary description:
Flame-tip countersink cutter by Dedra with head diameter H12×32 mm and 6 mm shank. Designed for drilling and countersinking operations to create chamfers or deburring holes in metal, wood or plastic where a flame-shaped profile is required. Suitable for handheld routers, drills or rotary tools with a compatible 6 mm collet; use in light machining and finishing tasks.