Tape Measure: The Wobbly HookWhy the metal tip moves back and forth
From the show
Why it looks like thatMost people assume the loose metal tab on the end of a tape measure is a manufacturing defect or a sign of wear. It is actually a precision engineering feature designed to slide exactly the thickness of the hook itself. This movement guarantees accuracy whether you are pressing the tape against a wall or hooking it over an edge.
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