Upper & Lower Knife Set For Juki MO-600 & MO-700 Series Sergers Overlock Machine Juki Part # A4142-335-000 (Upper Knife) & # A4145-335-000 (Lower Knife) Fits Juki MO-600 & MO-700 series portable overlock machines Including : MO-613, MO-623, MO-634, MO-634D, MO-644D, MO-654D, MO-654DE, MO-655D, MO-655DE, MO-734DE, MO-735 *All the shipments are sent from New York, USA.