Making a Protractor Fine Adjustment Gear Part 1

In this episode I begin the process of making the fine adjustment gear that allows these protractors to be moved by 1/12th of a degree on a Browne & Sharpe protractor model 496. These little knobs have a tendency to get lost and mine didn't come with one. So lets make one.
NOTE:
I'd like to remind my viewers that I make videos for FUN. I like to hear your tips and advice and to chat, I don't appreciate snotty remarks and negativity. I think it's childish and petty. So keep it positive. Gilles