The OMR 100750KD Jack lock features radial brass pins operated by the distinctive red Jack key, which can only be duplicated by OMR, ensuring a high level of security. The rotor includes a front anti‑drill protrusion, while the die‑cast body is protected by a steel anti‑pliers ring to resist forced entry attempts.

The key can be removed only when locked, improving operator safety.

The rear slotted attachment supports straight, bent, hook cams, spring‑loaded latches, translating‑rod rockers and centralized drawer control cams. This makes the Jack lock suitable for vending machines, gaming machines, safes, elevator access boxes, parking meters, coin changers, museum furniture and high‑security contract applications.