Ship modelers use the pounce wheel to simulate rivets on the copper plating, which is affixed to the hull. Historic wood ships used copper plates to resist sea worms penetrating the hull and weakening the strakes and ribs.
14 teeth per inch - used for tracing lines. Head can be locked for straight work or loose to allow for circles and curves. Can be used on paper, cardboard, foam, fabric, or soft metals. .31 x 5in - .8 x 12.7cm