NAICS 332721 Quarterly Industry Report
Precision Turned Product Manufacturing
Comprehensive industry research for valuation professionals, business owners, buyers, and lenders
NAICS Code: 332721Sector: 33Updated: Q1 2026
About This Report
This NAICS 332721 industry report synthesizes data from the U.S. Census Bureau[7] 2022 Economic Census, Bureau of Labor Statistics[8] occupational employment statistics, and SBA contracting size standards. Fair Market Value produces quarterly updates to track supply chain shifts, workforce demographics, and end-user demand trends affecting valuation benchmarks for precision turned product manufacturers. NAICS 332721 content is verified against multiple authoritative government sources. Our research team consults primary databases to establish defensible metrics for business valuations, M&A comparables, and strategic planning.
Industry Snapshot
Key metrics for the precision turned product manufacturing industry.
Industry Definition & Overview
Precision Turned Product Manufacturing (NAICS 332721) encompasses establishments primarily engaged in machining precision products of all materials on a job or order basis, using large-volume turning equipment such as automatic screw machines, rotary transfer machines, computer numerically controlled (CNC) lathes, or turning centers. These manufacturers produce high-tolerance components for diverse markets including automotive drivetrains, aerospace structures, medical implants, and industrial equipment.
The industry serves as a supply chain link between materials producers and end-use manufacturers. Work flows through precision turned manufacturers as customer-specific contracts requiring tight dimensional tolerances, surface finishes, and material specifications. Production volumes range from prototype quantities to sustained high-volume runs. Operations integrate CAD-CAM programming, metrology, tool design, and production scheduling with machine operation.
Workforce skills span machine operators, setup technicians, machinists, and quality inspectors. The sector faces persistent labor market constraints, with precision machining occupying a top-priority position among hard-to-fill manufacturing roles due to extended training cycles and limited vocational pipelines. Producer prices for precision turned products are tracked by the Federal Reserve Economic Data (FRED)[5]. The Precision Machined Products Association[6] represents member companies through advocacy, technical resources, and industry networking. Material costs for bar stock, particularly stainless steel and titanium alloys, represent the largest variable expense for most turned product manufacturers. Geographic concentration follows automotive and aerospace clusters in the Midwest and along the Eastern Seaboard.
What's Included in This Industry
- Precision turned metal parts manufacturing using CNC turning centers and automatic screw machines
- High-volume rotary transfer machine operations for stepped, complex geometries
- Swiss-type CNC lathe work for long, slender components with secondary operations
- Precision plastic turned components for medical devices and consumer electronics
- Multi-axis turning operations producing integrated features reducing secondary processing
- Job shop and contract manufacturing of turned parts for OEM customers
- Production on piece-part and short-run orders with tight tolerance requirements
- Turned fastener components (screws, dowels, studs) produced by turning rather than header machines
- Specialty material turning including titanium, stainless steel, and exotic alloys
- Turning operations for aerospace, automotive, medical, and industrial customer bases
NAICS Classification Hierarchy
| Level | Description | Code |
|---|---|---|
| Subsector | Fabricated Metal Product Manufacturing | 332 |
| Industry Group | Machine Shops; Turned Product; and Screw, Nut, and Bolt Manufacturing | 3327 |
| NAICS Industry | Turned Product and Screw, Nut, and Bolt Manufacturing | 33272 |
| National Industry | Precision Turned Product Manufacturing | 332721 |
Related NAICS Codes
| Code | Description | Relationship |
|---|---|---|
| 332722 | Bolt, Nut, Screw, Rivet, and Washer Manufacturing | Bolt, Nut, Screw, Rivet, and Washer Manufacturing uses header, threader, and nut-forming machines to produce fasteners, distinguished from NAICS 332721 which focuses on turned products created through rotary cutting rather than cold forming machines. |
| 332710 | Machine Shops | Machine Shops cover broader contract machining operations including boring, grinding, milling, and additive manufacturing on job or order basis, whereas NAICS 332721 specializes exclusively in turning operations and rotary transfer processes. |
| 332811 | Metal Heat Treating | Metal Coating, Engraving, and Heat Treating provides secondary finishing services such as electroplating and heat treating on turned products, classified separately because surface treatment processes differ fundamentally from precision turning operations. |
| 332613 | Spring Manufacturing | Spring Manufacturing produces coil, helical, and flat springs from purchased wire using specialized forming equipment, while NAICS 332721 produces precision turned components through rotary cutting operations on lathes and screw machines. |
| 332510 | Hardware Manufacturing | Hardware Manufacturing produces standardized fasteners, hinges, and similar hardware through various metal forming processes, while 332721 focuses specifically on precision turned components manufactured through CNC lathes and automatic screw machines. |
| 332999 | All Other Miscellaneous Fabricated Metal Product Manufacturing | All Other Miscellaneous Fabricated Metal Product Manufacturing covers metal products not classified elsewhere, while 332721 specifically encompasses precision turning operations using dedicated large-volume turning equipment for high-tolerance component production. |
Geographic Concentration
Top states by share of national establishments.
| # | State | % Est. | Total Est. |
|---|---|---|---|
| 1 | California | 12.1% | 477 |
| 2 | Michigan | 8.0% | 313 |
| 3 | Ohio | 7.2% | 282 |
| 4 | Illinois | 7.1% | 278 |
| 5 | Texas | 6.4% | 253 |
| 6 | New York | 4.7% | 185 |
| 7 | Pennsylvania | 4.6% | 180 |
| 8 | Minnesota | 3.8% | 148 |
| 9 | Connecticut | 3.6% | 142 |
| 10 | Wisconsin | 3.6% | 142 |
% Of Establishments
0%
12%
Source: County Business Patterns, U.S. Census Bureau[3]
SBA Lending Summary
120
Total SBA Loans
$82.4M
Total Loan Volume
$687K
Average Loan Size
10 yrs
Average Loan Term
8.81%
Average Interest Rate
2,208
Jobs Supported
Source: SBA 7(a) Program Data, U.S. Small Business Administration — FY 2025[4]
Key Insight: The Small Business Administration classifies Precision Turned Product Manufacturing (NAICS 332721) with a small business size standard of 500 employees[9], computed as the average number of full-time or part-time employees over the last 24 months. This threshold determines eligibility for SBA loan programs, federal contracting preferences, and small business certifications. The industry's capital intensity and technical skill requirements make SBA financing options valuable for market entry and equipment upgrades. Precision turned manufacturers may participate in federal contracting through GSA schedules and prime contractor supply chains[10]. Eligible businesses can access SBA 7(a) loans[11] for working capital, equipment, and acquisition financing, while 504 loans[12] support major fixed-asset purchases including real estate and heavy machinery.
Top SBA Lenders
| # | Lender | Loans | Volume | Avg Loan |
|---|---|---|---|---|
| 1 | The Park National Bank | 8 | $39.0M | $4.9M |
| 2 | Village Bank | 8 | $17.8M | $2.2M |
| 3 | Centier Bank | 24 | $12.0M | $500K |
| 4 | Manufacturers and Traders Trust Company | 16 | $3.9M | $241K |
| 5 | The Huntington National Bank | 8 | $2.2M | $279K |
Frequently Asked Questions
Common questions about this industry.
What types of businesses are classified as Precision Turned Product Manufacturing?
NAICS 332721 includes precision turned manufacturers, screw machine shops, and contract CNC turning operations. They range from small shops with 5-10 employees to mid-sized manufacturers with 200+ employees. Examples include shops operating CNC turning centers for high-volume medical components, Swiss-type lathe shops producing slender parts for aerospace, or multi-spindle automatic screw machine operations running commodity fastener components.
How is NAICS 332721 structured differently from Machine Shops (332710)?
NAICS 332721 covers establishments whose primary activity is precision turning, where products are created through rotary cutting operations on lathes, CNC turning centers, Swiss-type machines, and automatic screw machines. NAICS 332710 (Machine Shops) covers the broader contract machining universe including turning, boring, milling, grinding, and additive manufacturing. Per the Census Bureau[7], if principal revenue derives from turning operations, the establishment classifies as 332721.
What is the SBA size standard for Precision Turned Product Manufacturing?
The Small Business Administration establishes a 500-employee size standard for NAICS 332721[9], computed as the average number of full-time or part-time employees over the last 24 months. Establishments averaging 500 or fewer employees qualify as small businesses for federal contracting purposes, SBA loan eligibility, and small business certifications.
How does NAICS 332721 differ from Bolt, Nut, Screw Manufacturing (332722)?
The distinction rests on machinery and process. NAICS 332722 covers establishments manufacturing fasteners using header machines, threaders, cold forming, and nut-forming equipment that shape blank stock. NAICS 332721 covers establishments using rotary turning equipment such as CNC lathes, Swiss machines, and automatic screw machines. According to naicslist.com[13], while both produce high-volume precision metal components, the manufacturing method determines classification.
What related industries supply inputs to or purchase from precision turned manufacturers?
Upstream suppliers include steel mills and material processors providing bar stock and specialty alloys, and cutting tool manufacturers supplying carbide inserts and tool holders. Downstream customers include automotive suppliers and drivetrain manufacturers (336213)[14] purchasing shafts and carrier components, aerospace contractors requiring precision airframe fasteners, and medical device manufacturers sourcing implant components. The Precision Machined Products Association[6] connects members across these supply chains.
What specific activities and products are included in NAICS 332721?
Activities include job or contract manufacturing of precision turned components from ferrous and nonferrous metals, plastics, and composites using automatic screw machines, CNC turning centers, Swiss-type machines, and multi-spindle rotary transfer equipment. Products include drivetrain shafts, precision fasteners produced through turning, complex turned geometries for aerospace, medical implant components, electrical connector bodies, hydraulic valve spools, and specialty components for industrial equipment.
Are Precision Turned Product Manufacturers eligible for SBA loans?
SBA 7(a) and 504 loan programs are available to qualifying small businesses in NAICS 332721[15], provided the business averages 500 or fewer employees and demonstrates repayment capacity. Equipment financing for CNC turning centers frequently uses SBA 504 loans due to the capital-intensive nature of precision machining. Manufacturers may also access SBA contracting programs including 8(a), HUBZone, and WOSB certifications.
Where are precision turned product manufacturers geographically concentrated?
The industry concentrates in automotive manufacturing regions including Michigan, Ohio, Indiana, and Illinois, where proximity to tier-one automotive suppliers supports strong demand for precision turned drivetrain components. According to BLS data[8], the Midwest maintains the highest concentration of machinist occupations nationally. Aerospace demand concentrates manufacturers in Southern California, Connecticut, and Arizona near major airframe OEMs. Medical device clusters exist in Minnesota and Massachusetts.
Sources & References
Government datasets and editorial sources used in this report.
- [1]U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages bls.gov
- [2]U.S. Census Bureau, Economic Census census.gov
- [3]U.S. Census Bureau, County Business Patterns census.gov
- [4]U.S. Small Business Administration, SBA 7(a) Loan Program Data data.sba.gov
- [5]Federal Reserve Economic Data (FRED) fred.stlouisfed.org
- [6]Precision Machined Products Association pmpa.org
- [7]U.S. Census Bureau census.gov
- [8]Bureau of Labor Statistics bls.gov
- [9]small business size standard of 500 employees sba.gov
- [10]GSA schedules and prime contractor supply chains sba.gov
- [11]SBA 7(a) loans sba.gov
- [12]504 loans sba.gov
- [13]naicslist.com naicslist.com
- [14]drivetrain manufacturers (336213) naicslist.com
- [15]SBA 7(a) and 504 loan programs are available to qualifying small businesses in NAICS 332721 sba.gov
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