Features • 2,3 and 4 thread convertible • Easy lay in threading • Threading chart • Color coded thread guides • Manual thread tension adjustment • Easily accessible lower looper guides • Changeable thread guide • Lower looper pretension setting slider • Easily retractable upper knife • Adjustable foot pressure • Snap-on presser feet • Standard stitch length 3mm • Adjustable stitch length 1mm to 5mm • Differential feed ratio 0.5 to 2.0 • Adjustable cutting width 3.3mm to 7.5mm • Maximum speed 1,300 spm • Low profile chip box • Air Threading: Upper and lower looper thread • Dust cover included • Safety switch sensor for looper and side cover, and presser foot • Quick change rolled hem