String.

1.) Why does Xela use pencil instead of using the drill gun to drill it up?, It is the right thing to make a string

2.) Why does he use two yo-yo’s to wind up the folded string?, to make the winding up more faster and easier?

I’m not totally sure about the second one, but he is starting off with a pencil to show that it’s possible.

If you only use one yoyo to wind it up the yoyo will just fall off the string.

The answer to the second question: if you use one, the string doesn’t have quite the same tension at the bottom around the yoyo. Also, when it is being untwisted, it will twist longer and be a tighter string.

Off topic: Have you make a video about breakaway?, It really wants me to quit yo-yoing sir. Grrrrrr.

it is possible i made a few strings like that all it takes is patience

Oh I’ve spun a few strings myself with nothing but a pen. And yes, you do need patience. A LOT of it too.

What? I have a whole…two videos. Not sure what you mean by one about breakaway.

I don’t know sorry. Link?