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Five-Cent Wedding Band

Step 3Drill a pilot hole

Drill a pilot hole

Start by drilling a small hole through the center, this will keep any further drilling or reaming on-center. Use cardboard to sandwich the coin when gripping it in the vice to protect it from nicks from the vice.

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dan (MonkeyLectric)

Dan Goldwater is a co-founder of Instructables. Currently he operates MonkeyLectric where he develops revolutionary bike lighting products. He also writes a DIY column for Momentum magazine.