. Presser-Foot Set b44 / b48 / b64. Included:. Ribbon-Couching Foot. Elasticator Foot. Blindstitch Foot. Piping Foot. Beading and Sequin Foot. Gathering Foot. Booklet Change of sewing foot spring. And use the presser feet for the bernette 64 AIRLOCK. To ensure that you can use your presser feet with the bernette 64 AIRLOCK model, you need to change the presser foot spring. Download now the required instructions:. Presser-foot set b44 / b48 / b64 - Usage of sewing foot spring. You will also find all information about how to change the spring or remove and attach the presser foot in our tutorial