This set of BEST keys demonstrates the specialized keying system behind the brand’s patented interchangeable core (IC) technology. The control keys shown are used to insert and remove IC cores from compatible lock bodies. The IC system, originally introduced in 4- and 5-pin versions, has evolved over time to accommodate additional master keying options and varying lock housings. A hallmark of BEST’s modular access control approach, this innovation helped set a benchmark for key management and flexibility in the locking industry.
