RG Manufacturing and Machining

Founded in 1973 as a one-person shop in Capron, IL called Double E Grinding, the shop transformed into a CNC/Prototype facility with a Quality Control Program in 1995 and became RG Mfg and Machining offering inventory programs to meet customer needs for continued quality parts, delivered on time.

In 2007, RG acquired OPT Tool which was well positioned in the prototype and machine repair part business. RG was relocated to the current location in Machesney Park, IL in 2008.

RG Manufacturing and Machining enjoys working with a diverse customer base and has over 75 years combined experience in manufacturing.

At RG, we always strive for continuous improvement in manufacturing technology. We believe training is absolutely essential to our mission. We sponsor the RRVTMA Apprenticeship program with eight Machinists completing an apprenticeship becoming journeymen.


Rock River Valley Tooling Manufacturing Association

Wherever possible, RG Mfg uses biodegradable, environmentally friendly coolant and lubricants provided by Chem Tool.