Description Differential gear mechanism, built-in winding device, easy to operate, flexible, and stable operation. It can be used for straight stitching, zigzag stitching, pattern stitching, patchwork stitching on thin and medium-thick fabrics. Suitable for making suits, women’s clothing, swimwear, children’s clothing, shoes, hats, gloves, embroidery, etc. Name: zigzag stitch, herringbone, embroidery machine 3. Needle used: 1 piece, DP5 No. Maximum stitch length: 5mm 6. Zigzag stroke: 9-12mm 7. Presser foot stroke: manual 6mm; knee control 12mm 8. Feeding method: feeding under the teeth 9. Suitable fabrics: thin materials, medium-thick materials (denim, cotton) 10. Use rotary hook: horizontal small rotary hook. SM-20U43 Industrial Sewing Machine Heavy Duty Sewing Stitcher Head 2000S. This product is mostly commercial. Differential gear mechanism, built-in winding device, easy to operate, flexible, and stable operation. Name: zigzag stitch, herringbone, embroidery machine. Maximum stitch length: 5mm. Presser foot stroke: manual 6mm; knee control 12mm. Feeding method: feeding under the teeth. Suitable fabrics: thin materials, medium-thick materials (denim, cotton). Sewing machine head (Excluding motor and table). Feedback is very important to us. It is impossible to address issues if we do not know about them! Faction is our ultimate goal. We work hard to earn your trust and future business. A If you receive a defective item, you may return it or ask for a discount. Due to time zones, our reply to your questions may not be immediately. If it’s non-workdays, please kindly be patient and wait till Monday.