treadlecrazy

I checked the three brands I have, and I guess the needle length only changes with size for some brands. Singer needles are the same length regardless of size. A Schmetz size 10 needle is 0.7 mm shorter than a Schmetz size 14. An Organ size 11 needle is 0.7 mm shorter than an Organ size 14. The tops of the eyes are all approximately the same distance from the upper end of the needle for all sizes and brands, so the difference in length is down below the eye. Singer needles are 0.3 mm shorter than Organ and Schmetz size 14 needles. I know some sewing machines work better with one brand of needles over another, but I don't know if the length is a factor - maybe it's just the slightly different needle shapes.