DuPage Precision Products is a company that specializes in CNC precision machining services. It offers milling and turning, drilling, tapping, threading, porting, boring, chamfering, and gun drilling, as well as o-ring grooving and contouring. The company also provides in-house design and building of tooling and fixtures, air decay and water testing, leak testing of components, and inventory management. DuPage Precision Products caters to the military, mining, construction, and marine industries.