JZD Brand - TOWA Digital Bobbin Case Tension Gauge Compare to TM-1 L-Style Bobbins (DTM-A1+TM-501)

JZD Brand - TOWA Digital Bobbin Case Tension Gauge Compare to TM-1 L-Style Bobbins (DTM-A1+TM-501)

• ATTENTION： This product is DTM-A1 + TM-501, ONLY FIT FOR "L" STYLE BOBBIN.
• You can use this gauge to preset the tension on each bobbin case. To make sure every bobbin case change is the same and eliminate the need to run a pre-test on your sewing project for loose, or tight stitching.
• This can measure not only under(bobbin) thread, but upper(needle) thread teasion
• Compact design with easy-to-read LED display provides 12-times the measuring rage of prior Towa units
• This is a TOWA Tensiometer with "L" type bobbin insert holder. TM-501 bobbin inserts USE FOR SMALL BOBBIN CASES "L" Style.