Kaylee from Firefly epitomizes this trope: very feminine in a lot of aspects (liking frilly dresses for one), but Wrench Wench extraordinaire.
In an episode of That 70s Show, Jackie (normally very feminine (especially in contrast to Donna) and a cheerleader and high-maintenance rich girl who can be an Alpha Bitch) helps Red fix a car, after Eric proves inadequate.
In King of the Hill: Luanne has shown to know quite a bit about car maintenance.
Five hats means that five tropers think it is ready to publish.
You are saying that you think this draft is ready to be published. That means the description is not ambiguous,
it doesn't duplicate an existing trope, there are at least three examples, and the title makes sense.