Bobbin Case Towa M Size Replacement Longarm

The Towa M Size Bobbin Case is a precision replacement bobbin case for commercial longarm machines using M-size bobbins. Towa bobbin cases are valued for consistent, reliable tension behavior and are designed to work seamlessly with the Towa TM-3 tension gauge for precise, measurable tension management. Having a spare bobbin case on hand allows quick case swaps during production rather than stopping for tension adjustment on the active case.