Overview

This industry comprises establishments known as machine shops primarily engaged in machining metal and plastic parts and parts of other composite materials on a job or order basis. Generally machine shop jobs are low volume using machine tools, such as lathes (including computer numerically controlled); automatic screw machines; and machines for boring, grinding, milling, and additive manufacturing.

Alternate descriptions

  • Automotive machine shops
  • Chemical milling job shops
  • Machine shops

Related NAICS

  • Machining precision products, known as precision turned manufacturers--are classified in U.S. Industry 332721, Precision Turned Product Manufacturing;
  • Manufacturing metal bolts, nuts, screws, rivets, washers, and other industrial fasteners using machines, such as headers, threaders, and nut forming machines--are classified in U.S. Industry 332722, Bolt, Nut, Screw, Rivet, and Washer Manufacturing;
  • Manufacturing stampings (except motor vehicle)--are classified in U.S. Industry 332119, Metal Crown, Closure, and Other Metal Stamping (except Automotive);
  • Manufacturing weldments and fabricated metal plate products--are classified in U.S. Industry 332313, Plate Work Manufacturing;
  • Coating, engraving, and heat treating metals and metal formed products fabricated elsewhere--are classified in Industry 33281, Coating, Engraving, Heat Treating, and Allied Activities;
  • Manufacturing foundry patterns--are classified in U.S. Industry 332999, All Other Miscellaneous Fabricated Metal Product Manufacturing;
  • Manufacturing motor vehicle stampings--are classified in Industry 336370, Motor Vehicle Metal Stamping; and
  • Repairing industrial machinery and equipment--are classified in Industry 811310, Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance.

Top carriers

  • Hartford Fire & Cas Grp
  • Unknown
  • Sentry Ins Grp
  • Amtrust Ngh Grp
  • Employers Holdings Grp
  • Federated Mut Grp

Cross reference

Industry codes related to NAICS 332710: general liability, SIC, and state or NCCI class codes.

General Liability (GL)

97220 Machine Shops
56911 Metal Goods Mfg.

SIC

3599 Industrial Machinery, Nec

NCCI Class Code

3632 Machine Shop NOC
3635 Gear Mfg. or Grinding.

CA Class Code

3632 Machine Shops

DE Class Code

0461 Machine Shops
0441 MFG., N.O.C.

MI Class Code

3632 ABBRASIVE BLASTING OF METAL
3635 AUTOMOBILE AXLE ASSEMBLY

NJ Class Code

3632 Machine Shop NOC
3635 GEAR MFG OR GRINDING NPD

NY Class Code

3632 Machine Shop NOC
3635 GEAR MFG. OR GRINDING

PA Class Code

0461 Machine Shops
0441 MFG., N.O.C.

TX Class Code

3632 Machine Shop NOC

Market report

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