★SZ-21-5NL:2-POINT(1-STEP) ZIGZAG
★SZ-21-5-3NL:3-POINT(2-STEP) ZIGZAG
★SZ-21-5-4NL:4-POINT(3-STEP) ZIGZAG
●Walking foot and feed dog make uniform and beautiful stitches to be obtaioned.
●Equipped with large hook,the bobbin has a twice larger capacity than that of regular hook.this is convenient for long materials sewing as well as with thick thread.
●Open type of top cover simplifies the maintenance.
●Applied the newly improved device,so increased the function &duradility ,and simplified the maintenance.
★SZ-21-5NL:2-POINT(1-STEP) ZIGZAG
Suitable for stitching medium to heavy weight materials that are difficult to feed when sewn,such as:diving suits ,shoes,boot,leather goods,tarpaulins ,……etc.
★SZ-21-5-3NL:3-POINT (2-STEP)ZIGZAG
Suitable for stitching the elastic & stretch materials, such as:canvas,nylon,vinyl,leather,……etc. Especially desireable where reinforced stitching is necessary for boat and truck cover,tents,awnings,sails,parachutes,tarpaulins,……etc.
★SZ-21-5-4NL:4-POINT (3-STEP) ZIGZAG
The perfomance and function are similar with SZ-21-5NL,but added the advantage of making an additional stitch for extra reinforcement
