Mechanical locks are devices used to secure doors, cabinets, and other entry points. They operate using a system of pins, levers, or tumblers that must be aligned correctly by a key or combination to unlock. These locks are often made from metal and are designed to withstand physical force, making them a popular choice for residential and commercial security. There are various types of mechanical locks, including pin tumbler locks, wafer locks, and lever locks. Each type has its own mechanism and level of security. Mechanical locks are widely used due to their reliability and simplicity, requiring no batteries or electronic components to function.