Based on this product's specifications, here are some alternatives and similar models
Drill bit Proline 78120K — metal drill bit Ø12 mm, length 151 mm, 1 pc
Summary description:
Single Proline drill bit model 78120K designed for metalworking. Diameter 12 mm, overall length 151 mm, sold as 1 piece. Suitable for drilling through metal sheets and components where a 12 mm hole is required. Use with compatible drill chucks at appropriate speed and cooling for metal drilling.