Did You Know This ? Basic Things to Know...

https://youtu.be/TkoCWUJt10w

http://interestingengineering.com/four-tape-measure-hacks-will-improve-life/ 

If you have done any type of home improvement project, big or small, you realized pretty early on that a tape measure is crucial to your efforts. Having accurate measuring of lengths and widths of any proposed space or object will save you HEAPS of trouble, repositioning and futile physical labor. But did you know that there are certain features on a tape measure that aim to make your life even easier? We uncovered and share four hacks that will improve the frustrating task of measuring.

Nailed it!
There is a small hole on the tip of (most) measure tapes that fits the head of a nail or screw pretty perfect. This is extremely advantageous when you are working solo and do not have someone to hold the other end. If you don’t have a nail or screw in your proposed measuring space, any thumbtack works just fine to hold that spot while you figure length.
Scribe Marks the spot 
On that same edge that holds a special spot for nails and screws, there is also serrated edge that often goes unnoticed. This is surely not by accident and serves a pretty useful purpose to mark your line against a wall when you do not have extra hand to pencil it in.
The slider initiates ultimate accuracy 
Many people do not realize that the first inch in your tape measure it not really a true inch. It is short by 1/16th of an inch accounting for the thickness of the end hook. But it counters that and permits accurate internal marks by a sliding feature installed in the edge of the hook. When you place the hook on edge and pull it tight, it will give 1/16th of an inch, making your read as accurate as possible.
Let the bass drop
At the bottom of every tape measure you will notice a number that shows the length of the tape measure itself. This allows for an inside reading without having to bend and fuss with the tape, just add the length of the base (usually 2 or 3″) to the shown length to get the full read.
Check out this video to see the tape measure and all of its hacks in action.
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http://interestingengineering.com/four-tape-measure-hacks-will-improve-life/