Slotting A Guitar Nut

Here are some tips for cutting the string slots in a guitar nut.
Notched Straight Edge: https://amzn.to/38v1Sd2
Nut Files: https://amzn.to/2C8uRao
String Action Gauge: https://amzn.to/2VRTYW9
Feeler Gauge: https://amzn.to/2Z46cwN