Some Swiss Army Knives Have a Secret Tool Under the Handle

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.