Tension Unit, Singer (Vintage Original) - NUMBERED fwtheme With this simple adapter you

With this simple adapter you can use many low shank attachments on your Bernina

Stay stitching of bias edges

221 & 222 FEATHERWEIGHT

unscrew it just slightly and adjust the motor up a little bit so your current belt loosens all the way

Tension Unit, Singer (Vintage Original) - NUMBERED fwtheme With this simple adapter youOriginal Singer Tension Unit for the Singer 221 and 222 Sewing Machines. Slack Regulator sold separately. It really is a matter of ease and preference, but if your old Singer Sewing Machine, including but not limited to the Featherweight 221, has one of the old style Tension Units then you might consider the option of switching it to a numbered tension unit. You can replace them with an original from another old Singer Featherweight machine, which is