Juki MO-1000 Jet-Air Serger Big Combo Deal! Can you imagine how easy serging could be if you didn't have to thread the serger? Look no further than the Juki MO 1000 with Jet-Air threading technology. The Juki MO 1000 threads the loopers with the push of a button! Thread is sent directly through Juki Overlock MO 1000 tubular loopers. This eliminates threading mistakes and protects the thread. There are no thread guides, no struggling, and no frustration with the Juki MO 1000.