Semroc Centering Rings Fiber BT-20 to BT-55(2pk) SEM-RA-20-55
Laser-cut rings for centering a BT-20 tube inside a BT-55 tube
0.05" thick
I.D = 0.736
O.D = 1.283
As with all parts sold by eRockets, these are first rate. Precise fit and well made. I appreciate how they are sold in pairs so I don’t have to overbuy for a specific project.
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