4 in Dust Hose Cam Lever Cuff
One-hand quick clamp for nominal 4 in flexible dust hose and tool ports: a 104 mm ID, 20 mm tall band with a 2.4 mm flexing wall and a print-in-place cam lever that draws the ears ~4 mm together, so it grips hose measuring 100–107 mm OD without a screwdriver. Replaces an expensive large-diameter worm clamp that kinks thin-wall hose; the spiral cam slot detents at the closed position and the lever pivots on a captured 5 mm pin.
garage dust-collection hose-clamp cam-lever