Constant-tension hose clamps are fast becoming ubiquitous on mass-produced cars, courtesy of their stone-cold reliability and automatic adjustment. Worm gear and T-bolt hose clamps should be re-torqued after installation with the hoses hot, since the clamping force squeezes rubber out from underneath the band (a tendency called cold creep), but constant-tension clamps keep themselves properly adjusted. They are, however, one of a mechanic’s knuckles’ worst enemies, and very difficult to detach without the right tools. Additionally, factory installations aren’t always the easiest to remove, which is where flexible hose clamp pliers come in.
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