Three-Thread Flatlock (wide)
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.
Left Overedge Needle Thread
Right Overedge Needle Thread
Three-Thread Flatlock (wide) page 1