Step 2Make the hole
Making the hole
1) Use an awl to start the hole off. I would suggest that you work from the outside, this creates a better finish. Try not to slip with the tools here, or you'll make a mess of the paint on the tin (like I have).
2) Enlarge the hole using increasingly larger tools. I used increasingly large screwdrivers to make mine.
3) File off the sharp metal edge inside the tin. This sharp edge could potentially shred a headphone cord.
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