How to make a hole in a coin

Written by heather vecchioni
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How to make a hole in a coin
Create a necklace by inserting a hole into a coin and placing a piece of leather through it. (coin image by Aleks4500 from Fotolia.com)

A coin with a hole in it can have many uses. For instance, the coin could be strung through a necklace or hooked into a key ring. In fact, some coins can actually be made into rings. Whatever the reasoning for wanting to place a hole in a coin, doing so is quite simple.

Skill level:
Moderate

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Things you need

  • Wooden surface
  • C-clamps
  • Hand drill or drill press
  • Drill bit

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Instructions

  1. 1

    Select what type of coin you would like to insert a hole into. Typically, the thinner the coin, the easier it is to make a hole. For instance, a penny is a lot thinner than a quarter or nickel and will be easier to create a hole.

  2. 2

    Lay your coin down on a wooden surface, if you are using a hand drill. Hardwood typically works better than other woods, such as pine or cedar. Keep the coin in place by clamping it to the table. If you are using a drill press, secure the coin in the object holder.

  3. 3

    Select what size drill bit you want to use. The bit you choose depends on how big you want the holes to be. For instance, a 1/16-inch bit will leave you with holes that are about the size of a pencil tip. The larger the bit size, the larger the hole will be.

  4. 4

    Pull slightly on the trigger of your hand drill to create a slow drilling motion. If you are using a drill press, place it on a low setting --- about 500rpm.

  5. 5

    Place the drill bit onto the coin with the drill on at a low speed. Press down until the bit comes out of the other side.

Tips and warnings

  • If you are using metal clamps to keep the coin in place, wrap masking tape around them to keep from scratching the coin.
  • To get your coin clean, make a solution that consists of 2 tbsp of white vinegar and 1 tsp of salt. Pour the liquid inside a small bowl and swirl the salt around until it dissolves. Place the coins in the liquid and let them soak for about 10 minutes.

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