I have over the years supplied many different types of hoseclamps. The Jubilee in its day was revolutionary, but its very design means it never tightens in a concentric manner. There is always a little bit of tube that is not clamped sufficiently. Cobber is quite right to identify the "super clamp" as a better alternative.
In industrial applications where the clamps do not have to be removed regularly, eared clamps are used, the type with a double ear that is permanently crimped with a pair of wide jawed snips or pliers. They of course can only be removed with a junior hacksaw, so only ideal where access is not an issue and regular removal is not required.

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