This is a set of Small Format Interchangeable Core lock cylinder (SFIC cylinder) manufactured by Junying, we are specialized in lock cylinder machining and a wide range of lock parts production, including SFIC core, IC core, mortise cylinders, cam lock housings, cam lock nuts, and more door lock parts, components, and accessories. With high precision multi-axis CNC machining facility (CNC milling centers, lathes, drills, etc.) and inspected using abrasion tester, salt spray test, optical emission spectrometer, and other precision measuring equipment, the exact specifications of each lock part can be ensured to be compatible with your existing hardware. A removable cylinder gives this core versatility and flexibility in various security applications. Junying interchangeable cores can be integrated into existing systems with no adverse impact on the current key system. Our Best/Falcon Style 7-Pin IC Core Lock Cylinder is perfect for chain stores and restaurants where require frequent rekeying, save lots of time. A variety of keyways can be selected such as Best A Keyways, Best F Keyways, and Best J Keyways. 6 Pin/7 Pin are both available. The SFIC core is suitable for applications like exterior doors where require keyed entry and security, as well as commercial buildings.