Dust Collection 4" Bridge (Spiral) Key Hose Clamp with Handle #13322
Bridge clamps (also called spiral clamps) are made so the clamp follows the spiral of the hose.
The special "bridge" welded into the clamp allows it to jump over the hard wire or cord in the hose - applying all the clamping force against the body of the hose.
At a little under 3/8" wide, these clamps easily position on the hose, sealing it to the fitting better than wider ones available elsewhere.
The key handle allows it to be tightened tool-free for added convenience.
You'll find these clamps extremely convenient in your workshop.