»Tin-Opener«

grabcad

A product from grandmother's days, based on a very simple original idea.You can buy this type of "Tin-Opener" this very day.But it's not so easy to work with it.Replace all rivets by screws, modify the sheet metal plates and the wooden grip piece, design the knob as a screwing-on part - then you can change or sharpen the cutting component every time, if it became blunt.