Based on this product's specifications, here are some alternatives and similar models
Drill bit Proline 71226, metal, Ø12 mm, length 260 mm, 1 pc
Summary description:
Proline 71226 is a single metal drill bit with a 12 mm diameter and 260 mm overall length. Designed for drilling metal, it fits standard drill chucks and is suitable for through and blind holes in steel and other ferrous materials. Useful for workshop repair, metal fabrication, maintenance and construction tasks.