L & Z Tool and Engineering is an American company based in Watchung, New Jersey, that specializes in the engineering and creation of plastic injection molds and die cast dies. As an ISO-9001-2015 registered company, they use the finest American made materials which conform to the strictest international quality standards. They offer a wide range of services including concept, design, prototyping, manufacturing, precision fitting, and finishing. With a long-standing reputation for producing superior products on schedule and at competitive prices, L & Z also provides engineering changes, repairs, modifications, or refurbishment of products according to the most exacting specifications, as well as hand engraving capabilities.