Towa Bobbin Case "L" Tension Gauge
Specifically for the L size bobbin cases. This amazing gage / tool will relieve the stress of not knowing if your bobbin case tension is set correctly. Just set your tension for between 190 and 220, aiming for closer to 200. This will help you to know that the only tension you need to adjust is the top tension. Just ask many of our technicians, this is a must have for relief of your tension headaches!
This is for "L" size only.
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