In this video threading guide, I’ll be showing you how wind the bobbin, how to prepare the shuttle, and how to thread the Singer 128 and Singer 127 sewing machines. If you have a knee pedal version, I’ll also show you how to to install the knee bar lever. I’ll perform the demonstration on my model 128. The model 128 can be considered the little sister of the model 127, which is the same machine except at ¾ the size.  There are another pair of similar machines, model 27 and model 28, which are often confused.  If you’re not sure which one you have, scroll to the bottom of this…