1. Knob-Adjusted Top Differential Feed：Seamlessly switch between synchronized/differential modes for even gathering or shift-free flat sewing.

2. Versatile Application Range：Ideal for gathering, cuff attachment, collar setting, topstitching, binding, seaming, and hemming,etc.

3. Auto-Synchronized Top Differential：Differential ratio auto-adjusts when modifying stitch length for unified control.

4.Patented Anti-Jam System：Blocks lint and debris for consistent stitching.

-QT Models:

Upgraded Pneumatic Presser Foot Lift：Delivers rapid-response operation with a generous 10mm lift height

-K Models:

1.Electronic Top Differential Feed Adjustment：One-touch multi-mode switching adapts to complex demands;Up to 16-Segment Programmable Workflows.

2.Multi-Segment Auto Operation & Manual Control：Enables preset automated sequences or flexible manual manipulation.