For sewing automatic buttonholes with or without cording. The sensor can measure the buttonholes automatically based on the size of the desired button. This allows you to produce any number of buttonholes of the exact same length. Use together with the fabric-feeding aid or the buttonhole leveler as well as the buttonhole cutter and buttonsew-on foot to create perfect buttonholes with consummate ease.
- 3A White Box: B1* B2 B3 B4 B5 C D Ea2-4 Eb2-4 F
- 3B White Box: B1 (125, 125s, 210, 215, 220)
B1* 135, 135s, 145, 145s, 230, 230 PE, 240, 330, 350 PE, 380