reversible
hexagonal socket, 1/4“ or 5/16”, DIN 3126/ISO 1173 D 6.3 or D 8
can be used directly with 1/4” bit attachments, C 6.3 or C 8 male hexagonal (size 4: 22 teeth, size 5: 30 teeth)
hexagon socket with spring ring
the bits fit together easily, are securely locked and can be removed without difficulty, even the wide-slotted hexagons (Form E, DIN 3126/ISO 1173)