The Olympus Lock R Series 400SD Plunger Lock provides enhanced security and keying flexibility for various applications. Its key can be removed in both locked and unlocked positions, offering convenience and control. The lock is easily rekeyable, allowing you to customize access as needed. With a solid brass pin tumbler cylinder and zinc die-cast body, it ensures durability and reliability. The included accessories, such as a strike locator, thimble strike, and bolt extender, simplify installation and increase versatility.