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Product Description
Permanently mark master or restricted keys with HPC's Specialty Locksmith Stamps. Let other locksmiths and key duplicators know it is a special purpose key and is part of a restricted system. The stamps are made of heavy duty steel stock, 3/8" (9.5mm) x 5/8" (16mm) with 1/16" (1.57mm) characters, hardened and zinc plated for years of trouble free service.
Stamp says, MASTER