using the highest quality materials. Our locks are not only secure and functional but extremely durable, designed to outlast the doors they are installed on. Cores & Keys Compatible... with Housings from Arrow, Best and Falcon in 6 or 7 pin Master Key system development and core combinating are available 13 standard keyways, 3 premium keyways Cores and Cylinders... IC Core, Plunger Lock, Ratchet Lock, Cam Lock, Mailbox Lock Cabinet Lock (PDF) Service Equipment Key Cutting Machine, Duo Block, Ejector Pin for I/Core and Multi-Punch Ejector Pin...