These metal and plastic bobbins are for drop-in Singer machines. Both sets of bobbins are 10.8mm high and suit early Singer machines with a domed, narrow drop-in bobbin case. Plastic bobbins can be used on machines originally supplied with metal ones.
These metal and plastic bobbins are for drop-in Singer machines. Both sets of bobbins are 10.8mm high and suit early Singer machines with a domed, narrow drop-in bobbin case. Plastic bobbins can be used on machines originally supplied with metal ones.
