What is loose?
Sockets falling off?
Extension falling off the ratchet?
It holds sockets fine and doesn't fall off the ratchet, but moves .003" more than you'd like when you radially push it back and forth? But it's otherwise functionally ok?
I have extensions from SK, Williams, Craftsman, KD, Allen, Proto, Husky, Klein....(all USA), Tekton, HF... and they're all fine; they perform their job function. They stay on the ratchet and hold the socket; they space the socket away from the ratchet; they perform the job that they're designed to perform. I've never put a dial indicator on them and decided this one was no good. If it holds sockets, doesn't fall off the ratchet, then it does its job and is fine. If it falls off the ratchet, or sockets fall off, then it's NG- return them. Otherwise, this is just being ridiculously ****. And yes, this is a tool website, but these items are mass produced to perform a job, and not stand up to comparisons to components for a Rolex.