Hafele MK3 master keys - Symo 3000 locks
MK3 series master key
Manufacturer of the lock
this key will only operate office furniture locks which have a master keyed symo 3000 series lock, not all symo 3000 series locks left the factory being able to accept a master key, as this is requested at the time of purchase.
the lock will have a 1-2 or 3 stamped on the lock face alongside the 4 digit keycode to denote the lock is master keyed and which key you require,
1 - MK1 master key
2 - MK2 master key
3 - MK3 master key