So Fine 40/3 Variegated
Superior Threads So Fine #40 is a 3ply polyester sewing thread.
The very nature of So Fine #40 is different from any other polyester thread. It is a patented and protected process and this So Fine #40 thread is the only thread like it in the world.
Enjoy no slubs, no lint buildup, and an even twist
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Home Machine |
Longarm Machine |
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Recommended Needle |
Topstitch #90/14 | #18 (MR 4.0) |
| Recomended Top Tension | 2.0 - 3.0 | loose on top and bobbin |
| Recommended Bobbin Tension | Bottom Line or So Fine! #50 | Bottom Line or So Fine! #50 |