The ax is a weapon that multiple characters have wielded in the series. Its appearance usually varies between episodes.
In "Wet Painters," the ax's head is gray, and has two blades, which are light gray. The ax's handle is dark brown.
In "Boating Buddies," the ax's head is gray, and has a light brown stain on the blade, which has brown goo on top of it. The ax's handle is dark brown.
In "Dear Vikings," the ax's head is gray, and has two striped blades, which are dark gray. The ax's handle is dark brown, and the head and handle are held together with rope.
In "The Sewers of Bikini Bottom," the ax's head is gray, and has a red blade. The ax's handle is light brown.
When SpongeBob and Patrick are opening the buckets of paint, SpongeBob uses a screwdriver and gets it done carefully. However, Patrick takes out the ax and smashes the lid of the can, which causes SpongeBob to take the can away from him.
When SpongeBob and Patrick are traveling inside Squidward in Sandy's submarine, Sandy talks to them through the speakers. Patrick thinks she's trapped in it and destroys the control panel with the ax.
When SpongeBob is running away from Boaty, he grabs and ax to defend himself with. A bus drives towards him and he attacks it with the ax, imbedding the ax into the front of the bus. The population of Bikini Bottom then exits the bus.
When the vikings arrive at the Krusty Krab, they show SpongeBob that one of the things they like to do is "redecorate." Two vikings then use their axes to chop a table in half.
Later, when SpongeBob wants to stop Squidward being catapulted off the ship, Gordon orders him to grab an ax and fight him. He is unable to lift the ax.
When the angry mob start destroying the Chum Bucket, a picture of Squidward is seen being destroyed by an ax.
"SpongeBob You're Fired"
When Mr. Krabs tells SpongeBob he's fired, he hands him an ax.
"The Sewers of Bikini Bottom"
When the Krusty Krab Stadium starts flooding with water, Charlton Hawkfish spots some axes on the ground near the speaker booth. He grabs one, rips off his shirt and dives into the water. He then uses the ax to break the lock on the fail safe.
"Mutiny on the Krusty"
When Mr. Krabs is upset due to Squidward being in charge, SpongeBob threatens to destroy his first dime unless he become captain and defeats the sea monster. Mr. Krabs refuses, and SpongeBob tries to use an ax to destroy the dime, only for the ax to turn to dust.
- This isn't the only weapon Patrick owns. He also owns a Rocket Launcher and a Flamethrower.
- In the original plot of "Have You Seen This Snail?," Granny was going to wield an ax, before it was replaced by a tray of cookies.
- In "SpongeBob You're Fired," Mr. Krabs handing SpongeBob the ax after he was fired is a literal take on "giving him the ax," meaning he is fired.
- According to Charlton Hawkfish, the Krusty Krab Stadium has a holiday called "Free Ax Day," where axes are presumably given away for free.