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Drilling Pre-Drilled Steel Hinge Brackets

RV701775

Active Member
I am about to drill my VS-411 hinge brackets to the rear spar of my VS and had a question about technique. Should I drill through the pre-drilled holes on the steel hinge bracket first or through the back side of the aluminum spar first? The concern being that if the steel hole is misaligned it will elongate the aluminum doubler hole behind it. If I do this the other way through the aluminum spar first, it may align a bit better.

Thoughts?
 
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