Upper looper #20117025 for JACK JK-803, JK-803D, JK-805, JK-805D, E4, E4S etc.
Item No. : 20117025
Upper looper #20117025 for JACK JK-803, JK-803D, JK-805, JK-805D, E4, E4S etc.
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This listing is for an OEM quality (made in China)
Upper looper #20117025
For JACK JK-803, JK-803D, JK-805, JK-805D, E4, E4S, and JK-798D series.
The "20117025 Upper Looper Jack" is a specific spare part for various models of Jack brand industrial overlock (serger) sewing machines, such as the JK-803, JK-803D, JK-805, JK-805D, and others in the E4 series, functioning as the secondary needle's thread-forming component for creating the overedge stitch