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Match hole mismatch

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SamP

Well-Known Member
Joined
Nov 4, 2016
Messages
94
We've started putting together a RV-12 kit, which has match drill holes that we drill to final size. When we assemble pieces together, we sometime note slight misalignments that doesn't hinder a cleco going in, but prevents a pop rivet from fitting in the hole. We've been taking a drill bit and passing it through the hole to slightly widen it, which allows the rivet to sit nicely in place.

My question is "Is this Kosher?" We don't take a lot of metal out when we twirl the drill bit in the hole to wide it up, but we may be forming burrs. This could prevent the rivet from seating correctly after being pulled.

Thanks for your thoughts.
 
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