Determine Needle Size with Rhonda's 80/40 Rule – SCHMETZneedles

  The most popular thread used for all types of sewing, quilting, and crafting is a 40 weight thread. When using a 40 weight thread, use a size 80/12 needle. If using a thread finer than a 40 weight, such as a 50 weight, use a smaller needle size such as 70/10. Micro threads use needle size 65/9 or 60/8. Again, using a

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