The Hammer is a melee tool-weapon that appeared in Grand Theft Auto: Vice City, Grand Theft Auto V, and Grand Theft Auto Online, and it is due to appear in Grand Theft Auto VI, having already been spotted in the game's first trailer. It was also planned for Grand Theft Auto: San Andreas and Grand Theft Auto: Liberty City Stories but was cut from both during development before returning in later titles. Across its appearances it has typically been depicted as a wooden-handled claw hammer suited equally to construction work and blunt-force combat.
Weapon data via GTA Wiki (Fandom), CC BY-SA 3.0.