Keder Mandrel
The keder mandrel is a tool for bringing bent keder rails on mobile homes or caravans back into shape. The diameter of the keder mandrel must correspond to the inner diameter (keder diameter) of the keder rail.
To bulge the keder rail, the keder mandrel is inserted and driven through the strip with light blows using a camping hammer. If the keder rail has widened too much, insert the mandrel and tap the rail from the outside with a hammer until the mandrel fills the rail with a little room.
