
| Model | JK664-01CB | 
| Needle | UY128GAS 11# | 
| Needle number | 2(3) | 
| Thread number | 4(5) | 
| Stitch length | 4.8 5.6 6.4( 2.4 3.2 4 4.8) | 
| Stitch width | 4.4 | 
| Differential feed ratio | 0.5-1.3 | 
| Looper hook inline | 2 | 
| Presser lift height | 6.3mm | 
| Max sewing speed | 6000rpm | 
Apply to sew various kinds of decoration stitches on kinds of materials, specially for the connection and decoration on various kinds of collar, cuff of sleeve etc.