as well as an 81 mm handle length

The description from WIHA highlights that the design is adapted for delicate work without damaging the workpiece

Driv: 1/4" sekskant (passende for DIN ISO 1173‑F 6

Internal dimensions: 125 x 185 x 115 mm (stated in the catalog)

tin-plated/electro-tinned

Bit serie 1 torx TORSION 1/4": TX6x25mm MIL57981101111 as well as an 81Product Overview The Wera 867 1 TZ TX 6 x 25 mm (05066301001) is a TORX bit designed for recessed TORX screws. The bit is part of Wera's 867 1 TZ family and is specified as TX 6 with a blade length of 25 mm. Design and Functionality Torsion Technology: The bit features a torsion zone (TZ) that absorbs peak torque and reduces the risk of premature tip breakage. 1 4" Hexagon Connection: 1 4" hexagon drive (Wera connecting series 1), suitable for holders