1-Needle, 3-Thread, High Speed 7000 RPM. Industrial Sewing Machine - Machine Head Only. The item "UNION SPECIAL 39500 1-Needle 3-Thread Serger Industrial Sewing Machine Head Only" is in sale since Friday, August 19, 2016. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Textile & Apparel Equipment\Sewing Machines".The seller is "miamisewingmachines" and is located in Miami, Florida. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia.