Bernina Buttonhole Foot #3A B-F fitting machines only with sensor
Bernina Buttonhole Foot #3A B-F fitting machines only with sensor
- You can then sew as many buttonholes of the exact same length as you want, in next to no time. With Buttonhole foot with slide # 3A and # 3C, a sensor on the presser foot determines the buttonhole length and relays the dimensions to the sewing machine.
