780 B 3/8" Adaptor, 780 B/1-S x 1/4" x 30 mm The Wera adaptor from square to hexagonal. Suitable for the attachment of bits with " hexagon drive as per DIN ISO 1173-C 6.3. Drive 3/8" squaret comes with particularly strong retaining ring. 3/8" adaptor
Suitable for bits with 1/4" hexagon drive (Wera connecting series 1)
3/8" square socket drive
Equipped with ball stop groove
Extra-strong Application: Suitable for 1/4" DIN ISO 1173-C 6,3 and 5/16" DIN ISO 1173-C 8 hexagon insert bits and Wera Series 1 and 2 Drive 3/8" female square