SPECIALTYTHREADS80Specialty Thread Guide ChartOVERLOCKSTITCHESTopstitchingButtonhole Twist(Medium-weight)Wooly Nylon(Medium-weight)Metallic Threads(Light-weight)APPLICATION Decorative EdgingDecorative FlatlockingRolled HemSoft seams on Lingerieand sportswearDecorative EdgingDecorative Topstitching4-Thread Seams Not recommended Use in loopers only For decorative exposedseams. Use in needlesand loopers4-Thread Edging Use in loopers only Use in loopers only Use in needles andloopers3-Thread Seams Not recommended Use in loopers only For decorative exposedseams. Use in needlesand loopers3-Thread Edging Use in loopers only Use in loopers only Use in needle andloopers3-Thread RolledEdgingUse in upper looper only Use in upper looper only Use in upper looper only.Lengthen stitch length.2-Thread Flatlock(wide or narrow) Not recommended Use in lower looper only Use in lower looper onlyCOMMENTS: Sew at a slower speedwhen sewing withheavier threadsSew at a slower speedwhen sewing withmetallic threadsCHAIN/COVERSTITCHES TopstitchingButtonhole Twist(Medium-weight)Wooly Nylon(Medium-weight)Metallic Threads(Light-weight)2-Thread ChainC-1, C-2, or C-3Needle PositionIn chain looper only In chain looper only In chain needle only3-Thread Cover StitchLeft NarrowRight NarrowWideIn chain looper only In chain looper only In needles only4-Thread Triple CoverStitch In chain looper only In chain looper only In needles only5-Thread Safety Stitch Not recommended In loopers only Not recommended6-Thread Stitch7-Thread Stitch8-Thread StitchIn loopers only In loopers only Not recommendedCOMMENTS:Not recommended forneedles. Use inlooper(s) only.Not recommended forneedlesSew at a slower speedwhen sewing withmetallic threads.3-ThreadWave3-ThreadRolled WaveIn upper or lower looper.Or both loopersUse in upper looperonlyIn upper or lower looper.Or both loopersIn upper or lower looper.Or both loopersIn upper or lower looper.Or both loopersIn upper or lower looper.Or both loopers