SRD:Gnome Hooked Hammer

Description
A gnome hooked hammer is a double weapon. You can fight with it as if fighting with two weapons, but if you do, you incur all the normal attack penalties associated with fighting with two weapons, just as if you were using a one-handed weapon and a light weapon. The hammer’s blunt head is a bludgeoning weapon that deals 1d6 points of damage (crit &times;3). Its hook is a piercing weapon that deals 1d4 points of damage (crit &times;4). You can use either head as the primary weapon. The other head is the offhand weapon. A creature wielding a gnome hooked hammer in one hand can’t use it as a double weapon—only one end of the weapon can be used in any given round.

You can use a gnome hooked hammer to make trip attacks. If you are tripped during your own trip attempt, you can drop the gnome hooked hammer to avoid being tripped.

Gnomes treat gnome hooked hammers as martial weapons.