snook / Allen key

"snook" is a hexagonal tool, which can be adjusted optimally over a joint for each angle. Difficult and inaccessible screws become attainable with "snook". The joint is unlocked by finger pressure on a torsion bar and the short part of the hexagonal tool can assume almost any angle.
At both sections of the hexagonal is a gear rim. This is unlocked by finger pressure. If the pressure diminishes, the teeth lock and it can be screwed. The joint consists of plastic (ABS) that is moulded on the tool. The sections are connected by a steel pin and a spring.