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Drop In Bobbin, Full Rotary Hook, Sewing-Only Machines, Most Modern Computers have Top Load Bobbins
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Additional Information:
The advantage of easy drop-in, top load bobbins is that you can readily see how much thread is left on the bobbin through the window. You do not have to remove the bobbin case to insert a new bobbin, and you do not have to remove the accessory tray from the freearm to change bobbins. Drop-in bobbin sewing machines also have full rotary metal hooks which move in one direction, run quieter, and require less lubrication than underneath oscillating shuttle hook and removable bobbin case systems like Bernina. |
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