Why Do Electrical Plugs Have Holes in the Prongs?
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![Why Do Electric Plugs Have Holes? [REVEALED!] - YouTube](https://i.ytimg.com/vi/2z2jsF5lkkg/maxresdefault.jpg "Why Do Electric Plugs Have Holes? [REVEALED!] - YouTube")
Why Do Electric Plugs Have Holes? [REVEALED!] - YouTube
Why are there Holes in the Prongs of Electrical Plugs?
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