Gerikt'n Margin Marker from Norway. Very popular product in Europe.
The Margin Marker is an adjustable marking corner square. It can be set from 0 to 25mm with even margins along two edges at 90°.
It can be used to mark along straight edges and internal corners. It is ideally suited to marking architraves, but it's also perfect for a number of marking applications.
The margins can be set using the clearly visible scale to quickly and consistently replicate different measurements.
The Margin Marker also fits easily into a pocket or tool pouch.
Ideal for trimming doors and windows