R6 is the historical ISEO reversible key locking system highly appreciated by the market for its reliability.
It has one row with 6 pins.
R6 keys are made of coated brass with a 16mm key neck.
Beside the R6 standard there are two special versions:
EN1303:2015
|1|6|0|B|0|C|5|C|
EN1303:2015
|1|6|0|B|0|C|5|D|