See if this works with your machine
Suitable for various BERNINA sewing machines and sewing techniques, Standard Adapter Shank #75 enables hassle-free attachment of accessories to your machine.
This special sewing accessory is used to attach Simple binder #85, as well as Ruffler #86 for gathering and pleating various types of fabric. Acting as a connecting piece, Standard Adapter Shank #75 is designed to fit precisely between the needle bar and the accessory you wish to use. The individual accessories can be screwed onto the Adapter shank in a single step.
Part Number: BER 0327027100
Alternate Part Number: 032702.71.00
Guaranteed to fit because it is a part.