2-Needle, 2/3/4/5 Thread Overlock with Chainstitch & Coverstitch 2 OR 3 NEEDLE BOTTOM COVERSTITCH The MO-735 easily converts to coverstitch for hemming and serging in one operation Ideal for hemming all types of knit garments including tee shirts and sweatshirts, as well as elastic and decorative seaming. CHAINSTITCH MODE 2-Thread chainstitch can be used for creating double seaming, binding and decorative stitching on woven fabrics. The unit easily converts to chainstitch and features an automatic chain looper threader. 5-THREAD SAFETY STITCH A 3-thread overlock with chainstitch creates the 5-thread safety stitch. A wide or narrow 3-thread overlock combined with 2-thread safety stitch creates super secure, professional seams!