JUKI MO-6814S 4 Thread industrial overlock machine with small (60cm) table-top. | eBay
Amazon.com: SINGER 14HD854 Professional 2 to 4 Thread Stitch Self Adjusting Serger Sewing Machine with 1,300 Stitch Per Minute Capacity and Accessories, Gray
JUKI MO-644D Garnet Series Serger 2/3/4 Thread Overlock With Differential Feed and Rolled Hem | GoldStar Tool