DBx1 Groz Beckert Needles, also known as 16X231, 16X257, 16X95, 1738, 1738A, 287WH, 71X1, DBX1, DBX257, SY2254, and SY2270. Lower size numbers represent narrower needles for lighter materials, while higher size numbers indicate thicker needles for heavier fabrics.
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