Your Swiss Army Knife Just Might Have a Secret Slot to Add an Extra Tool
How to hack your Swiss Army knife
With a bit of clever hackery, you can modify your own SAK to access this slot. The first step is to remove the scale. Then you can cut through the sidewall that blocks access to the slot and use a needle file to essentially grind out a little notch to accommodate the head of the implement you’ll be adding.
Now, what to do with that extra space you’ve opened up? Immler likes to slide a modified toothpick into that slot and then, where the toothpick normally goes, he adds another pretty indispensable tool — Firefly firesteel ($16.49 for a 3-pack). The Firefly folks themselves recommend replacing the toothpick with their product, but with your newly accessible mini-slot, you don’t have to abandon that handy little sliver of white plastic.
Instead, you can cut off the top of the toothpick, then cut a small piece from what you have removed and glue it to the top of the leftover sliver, essentially replacing the head of the now-shortened toothpick. Next you can use the needle file and a bit of sandpaper to round the head so it fits seamlessly into the bonus slot.
Source: www.gearpatrol.com