Under Wing Small Inspection cover

[jetdriven]

Is that a coining tool?

[jaylw314]

2 hours ago, jetdriven said:

Is that a coining tool?

No, it's for making a flange around the lightening holes in ribs to make them stronger.  Well, I suppose I could find other uses in the kitchen, but that's what it's SUPPOSED to be for 

[glenn reynolds]

 I have made several replacement inspection hole covers when they were damaged by a shop when doing my annual inspection.  I really like the Cleveland tool.  given how cheap the materials are and the fact that my inspector mechanic says that I should be paid by the JOB not the hour (i'm not a mechanic, it's his way way of expressing how appallingly slow I am) I make up a practice piece, then make the real deal.  It's fun, it takes very few tools, but I do recommend the 3M aluminum buffing wheel on a bench grinder (see aircraft spruce or mcmaster carr) for making perfect ovals and shapes.  this tool is only $48 which makes it about the lowest price airplane entertainment device I own.  this tool rolls the edge crease so the plate has a positive edge contact.  

http://www.cleavelandtool.com/Edge-Forming-Tool/productinfo/EF60/#.Wo2wn-inG3A