Wera Female Square 780 A/1 Standard, Adaptor 1/4" x 1/4" Drive Wera Adaptors for 1/4" and 5/16" hexagon insert bits and Wera series 1 and 2, conversion from female square drive to a hexagon bit. Features conversion from female square drive to hexagon insert bits, 1/4" x 1/4" drive Adaptor with a length of 25mm Suitable for all 1/4" DIN 3126-C 6.3 and Wera Series 1 and 2 Wera's experience of narrow tolerance manufacturing techniques and careful material selection helps deliver maximum safety at work Limited Lifetime Warranty, German Engineered Manufacturer Part #: 05042605001