Faucet drips and the handle won't shut the water off
A faucet that keeps dripping with the handle pushed fully down has a worn cartridge inside. That is a part, not a new faucet, and it comes out in under an hour on most single-lever kitchen faucets. A handle that feels loose and wobbly is a different fault: the set screw holding the lever to the stem has backed off, and tightening it can restore the shut-off. Replace the whole faucet only when the body is corroded, the brand is unknown and no cartridge matches, or the faucet has never shut off properly since the day it was installed.
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