That depends on where you got them. The ones supplied with
Hugens H4 rotate and the ones I got with a clone before that one
also rotate.
This is true for standard SMA connectors, but the short/open/load tools
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supplied with the NanoVNA do not have separate rotating collars on them.
The 3 devices are one solid piece each. The two 6 inch jumpers
supplied with the device do have collars that rotate.
