The brass lock consists of three main components: the lock body, cylinder, and keyhole. The lock body, typically made of durable brass, houses the internal mechanism that provides security and resists tampering. The cylinder, often crafted from brass or steel, holds the key mechanism and contains pins or wafers that align with the key’s cuts to allow for smooth operation when the key is inserted. The keyhole serves as the opening where the key is inserted to engage with the cylinder, enabling the locking or unlocking of the mechanism. Together, these elements form a secure and reliable locking system used in various applications.