Thumb key 2v1

 The thumb-turn key allows manipulation of the mortise lock (either latched or locked) after breaking or extracting the cylindrical insert. The tool is made of high-quality material and stands out with a length of 20 cm. The thumb itself forms the central part of the cylindrical insert, which is not welded (unlike keys from other manufacturers) and thus thermally degraded, but mounted. The guiding nose centers the key in the mortise lock. The main advantage of the tool is the ability to remove its guiding nose. Detachment is done without the use of tools. This modification allows the use of the key even in cases where the remaining broken cylindrical insert does not allow the control of the lock mechanism.

The thumb itself can be replaced or substituted with a different type after destruction.