Semroc Centering Rings Fiber ST-9 to BT-55(2pk) SEM-CR-9-55
Featherweight laser-cut fiber ring set which centers a ST-9 tube inside a BT-55 tube
ID= 0.998"
OD= 1.283"
Thickness: 0.05"
Warranty for 1 year from manufacturer defects
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