How to utilize the 3d printed RS Mainspring winder

Let's explore the 3d printed RS Mainspring winder and how it functions. I will detail how to use it in this short video.

[@tomhill4003]

Brilliant! Bergeon, eat your heart out!

[@danllew91]

Great tip on how to get the staple to engage. I always take ages to do it.

[@TheBrokeWatchmaker]

It used to be a major pain for me as well. Thanks for watching!

[@radium05]

How does one know what sizes to order.