For connecting screwdriver bits to drive attachments or screwdrivers with a 1/4, 3/8 or 1/2 inch square drive.
With spring ring and quick-change coupling. Adapter can be pivoted 45° to get to hard-to-reach places.
Bit socket: D 6.3
Square drive: 1/4 in
overall length: 40 mm
Hexagon drive: C 6.3 (1/4 inch)