The Cobble Crusher is an item from The Legend of Zelda: Breath of the Wild. It is a two-handed Goron sword with an base attack power of 15, though this can be increased by certain weapon bonuses. However it works more like a hammer since it cannot cut grass or trees but can destroy Ore Deposits and Breakable Walls with a single hit.
Some of the Goron guards at Goron City wield it as a one-handed sword. Lizalfos and Moblins can also carry them one-handed as well. It is the weakest out of the three Goron swords as it is weaker than the Stone Smasher which is the second strongest Goron sword. It has a base attack power of 15 which is greater than the Drillshaft, though is weaker in terms of durability. One spawns in Goron City next to the house south of the inn, and will respawn each time Link breaks it.