Juki MO 6916S-FF6 Super High Speed Overlock & Safety Stitch Machine, 1.5-4mm SL, 4.8mm W, 1:4 Diff Feed, Power Stand 8000RPM, 100 Needles at AllBrands.com
JUKI - MO-6916 High Speed Overlock Machine - YouTube
121-50702 Needle Clamp For JUKI MO-3716, MO-3916, MO-6716, MO-6916 Five Thread Overlock Sewing Machine Parts 4.8mm - AliExpress