Janome Hemmer Feet 4mm & 6mm - Category B/C. The hemmer foot is also known as rolled hem foot and is used to stitch the narrow rolled hems usually found on shirt tails, table linens and along the edge of frills.
The hemmer is designed with a scroll shaped feeder on top and a straight groove on the underside which determines the width of the finished hem.
There are three different sizes of hemmer foot available. The 4mm and 6mm hemmer feet are for medium to heavier fabrics and are available as a boxed set.