* Revolutionair™ needle threading * Revolutionair™ looper threading * Largest throat space * Thread delivery unit for the wave stitch * 8/7/6 Thread stitch capacity * Pure lighting - six LED lights * Variable speed control * Knee lift * Convenient presser foot lever * Looper drive system * Tubular loopers * Differential feed * Advanced knife driving & one-way clutch system * Chain/cover tension disks * Vertical needle penetration * Cover stitch chaining off