On Thu, 4 Feb 2021 23:11:39 -0500, alan wrote:

It's just wrong to use channel locks, pipe wrenches, and pliers when a
plumbing fixture has hex sides for a reason.

You should tell that to many generations of professional plumbers, who typically carry
monkey and strap wrenches to avoid marring what shouldn't be marred.
Otherwise a pipe wrench is their go to wrench.