A handle lock is a type of locking mechanism that is used to secure doors, windows, cabinets, and other items that have a handle or knob. It is designed to prevent unauthorized access and to provide an additional level of security to the item it is attached to. Handle locks come in a variety of styles and designs, but they all function by preventing the handle or knob from being turned or lifted.
Handle locks are commonly used in residential and commercial settings to secure doors and windows. They can be installed on both interior and exterior doors and are often used in conjunction with deadbolts or other types of locks to provide maximum security. Handle locks can be operated from both inside and outside the door, and they usually require a key to be opened from the outside.