Overcasting without a serger
FOOT 35 INVISIBLE Zipper Foot Stitch width 2.5mm - 030 653 72 00
FOOT INVISIBLE ZIPPER for B37/B38 - 502 060 13 63
Foot 97D Patchwork - 035 928 70 00
FOOT INVISIBLE ZIPPER for B77/B79 - 502 020 93 05
FOOT - PATCHWORK FOOT with GUIDE B37/B38 - 502 060 13 82