The B61 universal coupling comes less inserts.(See other listings for inserts).These high quality plastic and brass couplings make for perfect alignment and friction free running.
B-65 Coupling Unit Insert 3.2mm bore. These solid brass inserts are a push fit into the coupling unit and come in different sizes. This unit can be taped to M4....
B-63 Coupling Unit Insert 2.3mm Bore. These solid brass inserts are a push fit into the coupling unit and are in different sizes. This unit can be bored out to...
