How can you tell lif you have a cone of serger thread or piecing thread
I was given 5 cones of thread. They are 80 wt. I know that sometimes people will use a lighter wt for bobbin thread, but I'm not sure if there is a difference between serger thread and regular light weight piecing thread. It seems to be very nice quality, no little hairs like some heavier threads I have.
Not sure how to tell the difference.
Thank you for any input!