Ceramic bobbin holder
Both ends where the thread rubs are made of heat-resistant ceramic. It is extremely difficult to cut even with a thin thread.
Excludes bobbin drum weights. Wide range bobbin drum can be found here.
Ceramic bobbin holder
Both ends where the thread rubs are made of heat-resistant ceramic. It is extremely difficult to cut even with a thin thread.
Excludes bobbin drum weights. Wide range bobbin drum can be found here.