... machine operates perfectly and smoothly at low sewing tension, and perfect and stable stitches even ... kind; Model Number KLY737 KLY747 KLY757 Max. Sewing Speed 6000spm 6000spm 5500spm Needle type DC ... 3 Max. Sewing width 4mm 4mm 5mm Min. Sewing width 3.6mm 3.6mm 3.6mm Max. Sewing Thickness ... BOBBINS,NEEDLE PLATE,SEWING MACHINE, NP-7A GK26-1 ,HOUSEHOLD SEWING MCHINERY PARTS,SEWING MACHINERY SPARE PARTS ...