Singer 14T968DC - Three-Thread Flatlock Wide

Three-Thread Flatlock (wide)
Three-Thread Flatlock (wide) page 1
The Three-Thread Flatlock (wide) has the same set up as the Three-Thread
Flatlock (narrow) Stitch. The only exception is the Right
Overedge Needle is now
unthreaded and removed and the Left Overedge Needle is threaded. By using the
left needle, the stitch becomes wider.
Right Overedge Needle Thread
Left Overedge Needle Thread