generally used in overlock (serger) industrial sewing machines.
(SES) Light ball point. CANU: 03:36EB1. same as DCX27B - Juki MO-All classes Siruba: 401-all classes, 504-all classes, 512 to 514-all classes, 516-all classes Singer 831U
It is also known as MY 1023 SES, UY 191 GS SES, and DCx27 SES