Is there a movable hook at the top of the measuring tape used for measurement?The top of the tape measure (material: steel) will have a movable hook, which is riveted with three rivets. Why is this movable? What is the function?
The hook function is you when measuring object that can top, can also hook, hook was as long as a person can be measured object size, the top is the hook hook automatically retracts, the thickness of minus.
I think it's convenient to fix it for measuring, and also to prevent it from being drawn into the foot scale when you don't have to use it
The hook is, of course, the edge of the hook, so that a person can easily use a tape measure.Hooks can be moved in order to measure both the external size and the internal size.The first 10mm tape only 9mm, plus the thickness of the hook must be enough 10mm, while the hook thickness is 1mm.It can be said that the hook can move is a good tape measure, the design of the hook when the error has been counted. What can't be done is very bad.
