As its name implies, Bulky Overlock Foot #12 was designed to stitch bulky sweater knits using an overlock stitch. The large groove under the foot easily guides the edges of handknit fabrics, even those with very irregular shapes. The most common application sewn with this presser foot is creating piping—covering cord that can be inserted into seams and used to finish edges. The groove under Foot #12 is also useful when making and attaching piping. The engraved line on top of the foot indicates the right edge of the groove.
The large groove also works well for couching cords and strung or molded beads to the embellish the surface of fabric. This presser foot is also available for BERNINA models that have a maximum stitch width of 9mm.