Based on this product's specifications, here are some alternatives and similar models
Insulated Screwdriver Proline SL 6.5×150 mm, 1000V rated
Summary description:
Insulated slotted (flat) screwdriver Proline SL 6.5×150 mm designed for work on live electrical equipment up to 1000 V. Features a 6.5 mm blade width and 150 mm length for reach and leverage, insulated handle for user protection, and a hardened tip for reliable screw engagement. Suitable for electricians, maintenance and industrial use.