need to line up correctly.
The cutting edges must meet properly, and the lever needs to sit in the correct position. On some designs, openings in the metal can assist with positioning or aligning components during assembly.
Even a tiny difference in alignment can affect how smoothly the clipper operates.
6. It Can Be Part of the Lever Mechanism
The lever is what allows you to generate enough force to bring the cutting edges together.
On certain designs, a hole or opening can be incorporated into the way the lever
