Nut Holder

As Printed the https://www.thingiverse.com/thing:44118 Nut holder I tryed to make my own the same design starting from the beginning.
Those 3 nut holders are 0.5 mm bigger than the Nut that they will hold to give a little space for a easy use.
3 version: for 10mm nut; for 13mm nut; for 17mm nut.