The BERNINA Hook. The heart of the BERNINA 7 Series features a novel,centrally placed driver, which allows the BERNINA Hook to run fast yet quietly. The BERNINA Hook sews high-precision stitches up to 9 mm in width with speeds up to 1,000 stitches per minute. The bobbin holds up to 70% more thread than standard bobbins allowing you to sew longer without interruption
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