The basics If you are using your sewing machine to work with knitted fabrics, the Schmetz Ball Point Jersey Machine Needles will do the job. The benefits These jersey needles feature a medium ball point, specially designed to prevent any breakage in knitted fibers.  The uses They're ideal for knitted fabrics or other stretch fabrics.  The bottom line Schmetz Ball Point Machine Needle. 5/Pk-Sizes: 10/70,12/80,14/90.