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which dimple dies for AN507-6R6 screws

Skeejere

Member
trying to dimple elevator cover plate and reinforcement plates. the plans don't indicate which type of dies. Help?
 
I'm not in the shop right now, but I'm pretty sure my Cleaveland set of #6 screw dimple dies are marked as a #28.
 
Not sure what the Cleaveland set (my favorite dies by far but they're in a hangar) says but here's one from Brown Tool:

https://www.browntool.com/Listview/tabid/344/ProductID/2252/Default.aspx?txtSearch=dimple+die

Simple way to check your current dies for the #6 screw head size:

Drill a #27 hole in scrap, find the largest die which has a tip that fits in the hole, and there you are! Make a few test dimples in that scrap and check screw head fit. A "too small" dimple die set won't make a deep enough dimple for the screw head (of course make sure it's an aircraft screw with 100 degree countersink angle, from your kit). And a "too big" dimple die set won't fit the correct hole size.

For #8 screw do the same with #19 drill size.
 
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