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Ring Precision

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Ring Precision Components, a business unit of the Producto Corporation, was founded in 1945 under the name of the Ring Punch & Die Company on the strength of a patent obtained by one of the founders. The assigned patent dealt with a means of retaining punches and dies in their respective plates, using a lock-washer ring, hence the name Ring. Today Ring Precision Components is one of the eight major punch companies in the United States manufacturing precision tooling components for the metal stamping & forming, plastic injection molding and rubber molding industries. Ring Precision Components also manufactures OEM components for a wide variety of markets including aerospace, automotive, electronics, and medical-pharmaceutical.

Ring Precision Components also manufactures a complete line of leader pins and guide bushings. Pins ranging in size from 1⁄2 to 3 inch diameter and up to 28 inches in length, and a complementary line of bushings including ball bearing style and solid bronze, all produced to precision tolerances. Special requirements can also be addressed using our latest equipment.

Ring Precision Components is one of two separate business units within Producto. Tooling Components and Systems (TC&S) located in Bridgeport CT, is a major manufacturer of die sets, mold bases, and contract machining services. Tooling Components & Systems also designs and builds thermoform tools for the food packaging industry, as well as various consumer and industrial customers.


Producto, in addition to having complete manufacturing facilities in Jamestown and Bridgeport, has seventy-four distributor service organizations located throughout the United States, Canada and Mexico. In 1998, Producto acquired DIECO and operates it as a subsidiary company. DIECO has facilities in Solon Ohio, and manufactures die sets as well as distributes toolmaking supplies such as die springs, pins & bushings and punches & dies.

Today, Producto is part of the PMT Group headquartered in Bridgeport, CT.

Other operating subsidiaries within the PMT Group include the Moore Tool Company also located in Bridgeport, and Moore Nanotechnology Systems located in Keene NH. Moore Tool manufactures machine tools and systems for manufacturing companies requiring high productivity and high precision solutions. Moore is the worldwide leader for jig grinders and high precision measuring systems. Moore Nanotechnology Systems is dedicated to the development of ultra-precision machining systems, typically utilizing single point diamond turning and deterministic micro-grinding technologies for the production of electro and freeform optics and other high precision parts. Part tolerances to one-millionth of an inch (25 nanometers) are typical for many customers.