[. . . ] [. . . ] One feed dog moves the exact amount of fabric needed for the stitch length while the other pushes or pulls the fabric according to the ratio on the eed dial. This ratio can be set anywhere from 0. 5 to 2. 25. Differential Feed 0. 5-1. 0 Adjustable Cutting Width. Just slide the needle plate to "R" position and choose "R. H. "on the lower looper pre-tension setting slider. Solid metal base plate keeps machine stable, quiet and smooth running. [. . . ] [. . . ]