A worm drive is used on jubilee-type hose clamps or jubilee clamps; the tightening screw has a worm thread which engages with the slots on the clamp band.
A worm drive is used on jubilee-type hose clamps. A worm drive is used on jubilee-jubilee clamps. The tightening screw has a worm thread. This worm thread engages with the slots on the clamp band.