| Length butt to eye | 389 mm |
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| Shank diameter | 2.0 mm |
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| Customary needle designations | SY 7242, DVX971 B, SMX971 B |
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| Canu designation | 38:47 |
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| Further point designations | SET, RD |
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| Needle form description | Straight needle with double groove and scarf |
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| Technical sewing application | Double chain stitch |
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| Stitch type class | 400 |
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| Recommended for | Medium-weight woven fabrics, Artificial leather, Leather for clothing |
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| Examples of use | Workwear, Covers for upholstery, Accessories, Suits, Shoes, Leather clothing, Jeans |
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| Coating | Chromium |
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| Needle size | 0.9 Nm |
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| Point style | R - Cloth point |
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| Needle system | 971 B 1 |
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