Adaptor from square to hexagonal. Suitable for the attachment of bits with ¼" hexagon drive as per DIN ISO 1173-C 6.3. Drive: 3/8" squaret; comes with particularly strong retaining ring.
Adaptor for square to hexagon. Suitable for the take-up of bits with 5/16" hex head drive as per DIN ISO 1173-C 8. Drive: 3/8" square socket; comes with particularly strong retaining ring.