NAICS 332710: Machine Shops

Machine shops are job shops that turn, mill, grind and EDM metal and plastic parts to a customer's drawing, usually in short and medium runs. Most are small, owner-run businesses serving OEMs in aerospace, medical, automotive, energy and industrial equipment. They buy CNC machines, cutting tools, workholding, bar stock, coolant and inspection equipment, and they win their own work by quoting RFQs. Selling to a machine shop means reaching the owner, shop manager or buyer directly, usually by email and phone, and following up quote by quote.

NAICS 332710 is the North American Industry Classification System code for Machine Shops, a national industry in the Machine Shops; Turned Product; and Screw, Nut, and Bolt Manufacturing industry group (3327) of the Manufacturing sector (31-33).

In Factur's 2026 prospecting data, CNC machining and tool/die suppliers turned 71 of 421 quotes into purchase orders, 17%. Compare all five segments: Manufacturing sales by segment, 2026.