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Shank Scarf Shank diameter mm Length to top of eye mm Length to point mm Boye Singer Free Brewer Torr Schmetz Groz-Beckert Organ Other Comments

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R/F N 1.32R and 1.20F 41.74 47.47 42, 178 W&W 4 Two thread grooves, one each side. Flat starts 2.66mm from end. Tip of needle is 2.92mm from center line of shank. Curve starts at end of shank and is 24.5mm in length. Shank is 23mm long. #1=.83mm diameter, #1.5=.85mm, #2=.92mm, #2.5=.95

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