Satin brass mortise lock built for precision security in cabinetry and interior door applications. This 4-inch mortise unit delivers straightforward bit key operation with the durability DormaKaba is known for in the locksmith trade. The slim 1-inch profile enables installation in space-constrained frames without compromising functionality. Comes packaged in an attractive retail blister card for efficient inventory management and point-of-sale presentation. A practical choice for professionals seeking reliable, no-frills locking hardware.