Historically, the Germanic fire striker was designed so that the ends of the steel were curled or curved back towards the handle to form a compact, closed shape. This design ensured that the tool could not be misused as a knuckle duster or weapon when gripped, as no protruding points or hard edges reinforced the knuckles. For the blacksmith's craft, this meant a clear separation between everyday objects and weapons, underscoring the blacksmith's status as a producer of essential civilian tools and requiring the skillful mastery of shaping without compromising function.