Geberal sewing for thin-middle-thick cloth, shoulder and armpit sewing knitting underwear and women and children clothes. Thread: 4 Sewing speed(volv/min): 5500-6000 Stith length(mm): 0-5 Presser footlift(mm): 6 Decibel(db): ≤ 84 Torque(n. M): ≥ 0.4 Overedge width(mm): 1.5-6