For lock repair and cylinder recoding : the Tumbler kit Ø 2,92 mm by Madelin SA.
Contains Ø 2,92 mm reliable tumbler of varius colors.
The tumbler are adaptable to a great number of cylinders on the French/European and American markets.
This kind of tools enables to repair lock or recode a cylinder.
You have alose the possibility for creating small master keys with intermediate tumblers.
The variety of colors of the tumblers is for quick identification.
The kit exists also in Ø 2.72 diameter : Tumbler kit Ø 2,72 mm.