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Some nail clippers have a second, smaller hole near the pivot pin. This is not the same as the hole we’re discussing.
What that hole is for: It’s usually part of the manufacturing process—a guide hole for drilling or assembly. It doesn’t have a functional purpose for the user.
If your clipper has a second hole: Ignore it. Focus on the larger hole at the far end.
Common Myths About the Hole (Debunked)
Let me clear up a few misconceptions I’ve seen online.
Myth #1: “It’s for catching nail clippings.”
No. Nail clippings fly everywhere. The hole is far too small to catch them. Use a piece of tape or clip over a trash can. Metals& Mining
Myth #2: “It’s for sharpening the blades.”
No. You cannot sharpen nail clipper blades with the hole. (You can sharpen them by cutting through fine-grit sandpaper or aluminum foil—but that’s a different trick.)