Unwanted holes...

[Bradrock]

So if one gets help drilling wing skins, it is critical to monitor everything, otherwise you get holes where you really don't need them!

I have an unwanted hole on the radius of a wingspar. It looks a bit messy and I can't get to the backside of it to deburr. Please look at the photos and offer suggestions....






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[marcusofcotton]

With care, I believe you'll be able to deburr the backside with this type of deburring tool:

http://www.aircraftspruce.com/catalog/topages/shavivtools90061.php?clickkey=36418

[slscott715]

You may consider giving one of these a try:

http://www.yardstore.com/deburring-tools/deburr-tools-in-out.html

I know they're a bit pricey but they will allow you to deburr the backside without access and they do a nice job. Another plus is that you'll have it available to use during the remainder of the build.