Precision Measuring Devices

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Why does the hook on the end of my tape measure move slightly? Doesn’t that affect the final reading? Do I need to get a new one for my toolkit?

It is designed to slide the same amount as the thickness of the end of the hook. That way it can accurately measure distances when the tape is...

 

What’s the best tool for measuring the inside diameter of a piece of copper pipe?

A pair of dial calipers will do the job, using the inside measurement...

 

I want to hang some shelves but first I want to make sure I don’t hit any electrical wiring buried in the wall with my anchors. What’s the best way to do this?

By using a stud finder with a built-in AC current detector, you can trace hot wiring behind walls to make sure you drill in the right...

 
 
 
 


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