Based on this product's specifications, here are some alternatives and similar models
Flat screwdriver FELO Ergonic 5.5 x 1.0 mm model FL45005540 — impact-capable slotted tip
Summary description:
FELO Ergonic flat screwdriver 5.5 x 1.0 mm (model FL45005540) is a slotted hand tool with a 5.5 mm blade width and 1.0 mm tip thickness. Designed for general fastening and maintenance tasks, it features an impact-capable handle for light striking and controlled torque transfer. Suitable for electrical, mechanical and assembly work requiring a slotted/flat driver.