Based on this product's specifications, here are some alternatives and similar models
Rotary hammer accessory STHOR 23593 — drill/bit length 250 mm, diameter 14 mm, 1 pc
Summary description:
STHOR 23593 rotary hammer accessory: a 250 mm long, 14 mm diameter drill/bit supplied as a single piece. Designed as a replacement or spare part for compatible rotary hammers, it serves drilling tasks in concrete, masonry or similar materials depending on tool compatibility. Useful for repair, construction and renovation work where a 14 mm bore is required.