It is prohibited to bring dangerous objects, such as knuckle dusters, shurikens, edged weapons disguised as other objects, tasers, electric batons, spring batons and precision slingshots into Finland.
Points to consider
The definition of stiletto can be found in the Customs restrictions manual (only available in Finnish).
You can order or bring in a knife or a sword. According to the Public Order Act, the import of knifes and swords is not prohibited, but the possession of knifes and swords in a public place is subject to restrictions.