I have a crappier version for use in my vise as well, which worked after the problem was realized, but I know it was my failure to pay attention that caused the issue, at least in part.
With that said, the hammerhead is only about 6" long, and not really comfortable on the hands for tightening/loosening the muzzle device, which is where the breaker initially came in, not simply due to "massive torx, full steam ahead!"
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