Counterdefender: a little-known but very effective device


The same function does the fixed exposed counterdefender for cylinders with a knob or tang, with the difference that to bring it into view then to the same panel for a good finish it must perforce be shimmed, this factor although it might seem a small detail in reality would involve the use of longer pins, which in pulling might allow bending and twisting that do not do well you have pins in forcing. This version is also sometimes used for cylinders that have a key inside, although not recommended. And yes because an adjustable, threaded product is born for cylinders with an internal key.



Although perfectly designed, this product has some details to consider:



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