3. It Can Grip Nails or Screws
The notch in the hook lets it catch onto a nail or screw head, making it easier to measure long distances alone.
4. Some Hooks Include a Scribing Edge
Certain tape measures have tiny serrated edges that can lightly scratch a mark onto wood or drywall for quick reference.
5. Smart Engineering in a Tiny Part
That little hook is one of the reasons a tape measure stays accurate after thousands of uses.
