The Łucznik thread tension regulator adjusts the upper thread tension on Łucznik and Singer sewing machines in the 400 and 700 series.
- Type: Upper thread tension regulator
- Compatibility: Łucznik and Singer 413, 414, 415, 431, 432, 438, 449, 450, 451, 455, 465, 466, 468, 653, 721, 760, 722, 723, 747, 753, 760, 761
- Type
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Important information
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.