pf2e.fyi
From Pathfinder Lost Omens Ancestry Guide, which isn't enabled.

Gnaw

FEAT 5
RATFOLK
Activity 3 actions
Prerequisites Vicious Incisors

With enough time and determination, you can chew through nearly anything. You deal double your jaws damage to an unattended, inanimate object.

Pathfinder Lost Omens Ancestry GuideOGL