The application is thus geared towards fitting and turning hexagon screws

Product category (manufacturer): WIHA L-keys (hexagon socket)

as stated in the manufacturer's product overview

item number 32494

hvor TORX T27 er den relevante profil

1/4" unbracho bit 50 mm lang MIL2022101301 The application is thus gearedBits for internal hexagon socket screws Tough Wera 840 4 Z bits are designed for working with internal hexagon (hex) screws. The product is designated by the manufacturer WERA as part of the 840 4 Z series and is intended for general universal use, with a particular focus on increased durability in difficult materials. What it does Tough Wera 840 4 Z bits transmit torque to internal hexagon screws using WERA's Hex Plus profile. The Hex Plus profile