Bontarian Rat Dungeon Key

 is a key.

Obtaining

 * Dropped by
 * Grossewer Rat (Bonta Sewers only)


 * Crafted by a Handyman (Lv. 20) from

Uses

 * Access
 * Bonta Rat Dungeon


 * Used in the craft of
 * Ilyzaelle's Lookout Key