The Janome 634D MyLock with electronic control is the most advanced MyLock serger. The MyLock 634D lets you quickly switch to rolled hemming without changing the needle plate. When you want to make the most of your serging time with professional results the MyLock 634D is unmatched. Best buy Janome top line fully featured serger with easier lay-in thread tensions differential feed & built-in roll hem. Features:
2 needles and 23 or 4 thread overlock stitching
Adjustable differential feed from .05 to 2.25
Increased control for creating desired special effects