SCHMETZ-Stretch Machine Needles. Schmetz quality sewing machine needles have been manufactured to exacting standards since 1851. The choice of discriminating sewers world wide, only Schmetz provides the uncompromising, consistent quality that produces the perfect stitch every time. These needles were developed specifically for elastic materials and highly elastic knitwear. The medium ball point, specially designed eye and scarf prevent skipped stitches.