R.H. wrote:
I've got a flight wrench marked Duz-all, and was hoping someone could tell
me exactly what it was used for. There is a slot on the bottom and what
looks to be a screwdriver on the other end. It's number 696, the first tool
on this page:

http://puzzlephotos.blogspot.com/


Thanks for taking a look.

Rob


I'll buy it off you! This is an essential tool for Navion
owners. The one end has the screw driver, the round option
on the screw driver end is used to open the DZUS fasteners
on the cowling of the Navion. The slotted end is used
to adjust the trim tabs!