Based on this product's specifications, here are some alternatives and similar models
Drill bit Proline 71245 — 12 mm diameter, 450 mm length, 1 pc
Summary description:
Single Proline 71245 metal drill bit with 12 mm cutting diameter and 450 mm overall length. Designed for drilling metal and similar hard materials, this straight shank bit suits use with compatible drill machines for through-holes and deep drilling tasks. Supplied as one piece for workshop, industrial or maintenance applications.