COX MFG CO. 1956 150 Emp. 50,000 Sq. Ft. Screw Machine - Swiss/CNC Swiss Machining - miniature precision machining - CNC milling & turning machining - Precision CNC ISO 9001:2008. ITAR REGISTERED. Custom screw machine products in volume for the firearms and aero/defense industries and more. We expertly operate CNC, Swiss, multi axis, and multi-spindle machines to name a few. Parts range from miniature to 2.00" diameter, with a wide diversity of materials, delivered reliably. (less)