Description Overview Operating speed: 2250 rpm Stitch width: 16 mm Stitch range: 101 mm – 305 mm Federal stitch type: 501 Number of threads: single thread Needle Specifications Standard needle: NovaStar 8SDT NovaStar needle range: NovaStar 3SDT – 8SDT Motor Requirements Motor required: 1725 rpm, 60 Hz, 110 or 220 volts, 1 or 3 phase