The three-way swivel is most fre-quently used in forming the float paternoster for fishing a livebait. Constructed in the barrel style with an extension eye standing out from its side, it is prone to distortion and weakness if the bait gets caught and extreme pressure is applied as the angler pulls to break free. The only precaution against this weakness is being able to recognize it and replace the swivel immediately.
Link swivels are a means of quickly attaching (or detaching) a lure to a trace, or to a line. Ideally they should be simple to open and close —even with wet, cold hands—and strong enough to grip without completely collapsing when extreme pressure is applied.
Plain link swivels with two overlapping half-clips seem to find greatest favour among anglers, despite the fact that they are difficult to open when needed and often slip open without warning to shed either lure or trace during use. An improvement is the safety-pin link, where an open steel loop doubles back to fasten—as the name suggests—into a metal clip. Providing the clip is secure and there is sufficient overlap on the pin to fit snugly into it, this is a safer and more convenient unit than the plain link.
At first sight the diamond-link looks a flimsy affair of a single wire loop doubling back to clip over itself. But in practice it is strong, simple and easy to clean.