Fathom is hiring for multiple positions across our 12 nationwide sites! To see all open positions, click here.

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Fathom CNC Manufacturing //

Nationwide Locations

Certified and Secure High-Precision
CNC Machining Facilities Across the Country

start a quote for cnc

Or Any of Our 25+ Manufacturing Processes

Fathom CNC Manufacturing //

Rapid Prototyping

Cut through your product ideation timeline with
quotes in seconds, and parts in days.

start a quote for cnc

Or Any of Our 25+ Manufacturing Processes

Fathom CNC Manufacturing //

Bridge to Production

Free Fathom Expert Consultation and
Design for Manufacturability (DFM) Reviews

start a quote for cnc

Or Any of Our 25+ Manufacturing Processes

Fathom Delivers Precision CNC
As Fast As 5 Days

Need high-precision CNC even faster? Learn about our CNC Speed Service.

Cost-Effective, Precision
Manufacturing Of
Plastic Or Metal Parts

Part Of A Secure Facility
And Follows Processes To
Protect Your Ip

Extensive Certifications Including
ISO 9001:2015,
ISO 9001:2015 Design,
ISO13485:2016, AS9100:2016,
AS9102, NIST 800-171 and ITAR

Chosen By Top Companies
Across The Us
Including 8 of
The Top 10 Fortune 500
Industrial Companies
*Excluding Service Companies

Why Customers Choose Fathom //

A Differentiated
Customer Experience

We’re not an “upload, pay and ship” manufacturer like so many online.

Our Fathom Experts recognize the value of having design and manufacturing collaboration at any stage in the product development process, and a DfM analysis is available with every quote. Our diverse group of engineers, designers and builders help you navigate the right process, materials and more for each stage of your product development – from design and prototype, to validation for mass-production.

And with easy quoting and intuitive project management tools through our SmartQuote platform, you can move rapidly and confidently through your product’s lifecycle, navigate supply chain distruptions, and to deliver to market blazingly fast.

talk to an expert

Fathom is One of the
Largest & Most Proven

Digital Manufacturing Companies in the United States

With over 700 employees and 530+ machines across
25+ manufacturing processes,
Fathom scales with your
needs, from prototype, to bridge, to production qualities.

see our full list of processes

Easy Quoting and Project
Management in SmartQuote
Platform, with Access to
Engineering Feedback

Comprehensive and Diverse
Manufacturing Processes,
with 25+ Different
Manufacturing Processes
Across the Fathom Brand

Materials Guide

MATERIAL OPTIMAL
QUANTITY
TOLERANCES
(+/-)
ADVANTAGES &
CONSIDERATIONS
FINISH &
APPEARANCE
Stainless
Steel
1 – 1,000 +/- 0.005”
  • High Strength
  • High Corrosion
  • Resistance
  • High Weldability
Standard Machined Finish
Tumbled
Bead Blasted (Sand or Glass)
Polished

Material Details

Fathom offers a variety of low carbon steels suitable for CNC machining, including:

Mild Steel 1018 // Widely available raw material. Mild steel can be welded and machined. It offers decent strength and ductility. Applications of steel 1018 include shafts, pins, and rods.

Mild Steel 1045 // High strength, easy to weld and machine, good tensile strength. Applications of 1045 steel include gears, axles, bolts, and support plates.

Mild Steel A36 // Also known as A36 Hot Roll Steel. Ductile, cost-effective, strong, and easy to weld or machine. Applications include structural components for buildings and bridges.

Steel C45 // Also known as general carbon engineering steel. Considered medium-strength steel, C45 has excellent tensile properties, good strength and wear resistance, and good machinability. Applications include rods, screws, shafts, knives, and hammers.

Steel S355J2 // Medium, low-carbon manganese steel. Easy to weld and offers excellent impact resistance. Applications include components for construction, energy, engineering, bridges, railways, and military parts.

Steel S235JR // Non-alloy structural steel, popular for construction and civil engineering. Excellent for welding. Applications include components for industrial facilities, offshore structures, bridges, oil and gas.

Low Carbon
Steel
1 – 1,000 +/- 0.005”
  • High Strength
  • High Corrosion
  • Resistance
  • High Weldability
Standard Machined Finish
Tumbled
Bead Blasted (Sand or Glass)
Polished

Material Details

Fathom offers a variety of low carbon steels suitable for CNC machining, including:

Mild Steel 1018 // Widely available raw material. Mild steel can be welded and machined. It offers decent strength and ductility. Applications of steel 1018 include shafts, pins, and rods.

Mild Steel 1045 // High strength, easy to weld and machine, good tensile strength. Applications of 1045 steel include gears, axles, bolts, and support plates.

Mild Steel A36 // Also known as A36 Hot Roll Steel. Ductile, cost-effective, strong, and easy to weld or machine. Applications include structural components for buildings and bridges.

Steel C45 // Also known as general carbon engineering steel. Considered medium-strength steel, C45 has excellent tensile properties, good strength and wear resistance, and good machinability. Applications include rods, screws, shafts, knives, and hammers.

Steel S355J2 // Medium, low-carbon manganese steel. Easy to weld and offers excellent impact resistance. Applications include components for construction, energy, engineering, bridges, railways, and military parts.

Steel S235JR // Non-alloy structural steel, popular for construction and civil engineering. Excellent for welding. Applications include components for industrial facilities, offshore structures, bridges, oil and gas.

Aluminum 1 – 1,000 +/- 0.005”
  • High Strength
  • High Corrosion
  • Resistance
  • High Weldability
Standard Machined Finish
Tumbled
Bead Blasted (Sand or Glass)
Polished

Material Details

Fathom offers a variety of low carbon steels suitable for CNC machining, including:

Mild Steel 1018 // Widely available raw material. Mild steel can be welded and machined. It offers decent strength and ductility. Applications of steel 1018 include shafts, pins, and rods.

Mild Steel 1045 // High strength, easy to weld and machine, good tensile strength. Applications of 1045 steel include gears, axles, bolts, and support plates.

Mild Steel A36 // Also known as A36 Hot Roll Steel. Ductile, cost-effective, strong, and easy to weld or machine. Applications include structural components for buildings and bridges.

Steel C45 // Also known as general carbon engineering steel. Considered medium-strength steel, C45 has excellent tensile properties, good strength and wear resistance, and good machinability. Applications include rods, screws, shafts, knives, and hammers.

Steel S355J2 // Medium, low-carbon manganese steel. Easy to weld and offers excellent impact resistance. Applications include components for construction, energy, engineering, bridges, railways, and military parts.

Steel S235JR // Non-alloy structural steel, popular for construction and civil engineering. Excellent for welding. Applications include components for industrial facilities, offshore structures, bridges, oil and gas.

Brass 1 – 1,000 +/- 0.005”
  • High Strength
  • High Corrosion
  • Resistance
  • High Weldability
Standard Machined Finish
Tumbled
Bead Blasted (Sand or Glass)
Polished

Material Details

Fathom offers a variety of low carbon steels suitable for CNC machining, including:

Mild Steel 1018 // Widely available raw material. Mild steel can be welded and machined. It offers decent strength and ductility. Applications of steel 1018 include shafts, pins, and rods.

Mild Steel 1045 // High strength, easy to weld and machine, good tensile strength. Applications of 1045 steel include gears, axles, bolts, and support plates.

Mild Steel A36 // Also known as A36 Hot Roll Steel. Ductile, cost-effective, strong, and easy to weld or machine. Applications include structural components for buildings and bridges.

Steel C45 // Also known as general carbon engineering steel. Considered medium-strength steel, C45 has excellent tensile properties, good strength and wear resistance, and good machinability. Applications include rods, screws, shafts, knives, and hammers.

Steel S355J2 // Medium, low-carbon manganese steel. Easy to weld and offers excellent impact resistance. Applications include components for construction, energy, engineering, bridges, railways, and military parts.

Steel S235JR // Non-alloy structural steel, popular for construction and civil engineering. Excellent for welding. Applications include components for industrial facilities, offshore structures, bridges, oil and gas.

MATERIAL OPTIMAL QUANTITY TOLERANCES (+/-) ADVANTAGES & CONSIDERATIONS FINISH & APPEARANCE
Stainless
Steel
1 – 1,000 +/- 0.005”
  • High Strength
  • High Corrosion
  • Resistance
  • High Weldability
Standard Machined Finish
Tumbled
Bead Blasted (Sand or Glass)
Polished

Material Details

Fathom offers a variety of low carbon steels suitable for CNC machining, including:

Mild Steel 1018 // Widely available raw material. Mild steel can be welded and machined. It offers decent strength and ductility. Applications of steel 1018 include shafts, pins, and rods.

Mild Steel 1045 // High strength, easy to weld and machine, good tensile strength. Applications of 1045 steel include gears, axles, bolts, and support plates.

Mild Steel A36 // Also known as A36 Hot Roll Steel. Ductile, cost-effective, strong, and easy to weld or machine. Applications include structural components for buildings and bridges.

Steel C45 // Also known as general carbon engineering steel. Considered medium-strength steel, C45 has excellent tensile properties, good strength and wear resistance, and good machinability. Applications include rods, screws, shafts, knives, and hammers.

Steel S355J2 // Medium, low-carbon manganese steel. Easy to weld and offers excellent impact resistance. Applications include components for construction, energy, engineering, bridges, railways, and military parts.

Steel S235JR // Non-alloy structural steel, popular for construction and civil engineering. Excellent for welding. Applications include components for industrial facilities, offshore structures, bridges, oil and gas.

Low Carbon
Steel
1 – 1,000 +/- 0.005”
  • High Strength
  • High Corrosion
  • Resistance
  • High Weldability
Standard Machined Finish
Tumbled
Bead Blasted (Sand or Glass)
Polished

Material Details

Fathom offers a variety of low carbon steels suitable for CNC machining, including:

Mild Steel 1018 // Widely available raw material. Mild steel can be welded and machined. It offers decent strength and ductility. Applications of steel 1018 include shafts, pins, and rods.

Mild Steel 1045 // High strength, easy to weld and machine, good tensile strength. Applications of 1045 steel include gears, axles, bolts, and support plates.

Mild Steel A36 // Also known as A36 Hot Roll Steel. Ductile, cost-effective, strong, and easy to weld or machine. Applications include structural components for buildings and bridges.

Steel C45 // Also known as general carbon engineering steel. Considered medium-strength steel, C45 has excellent tensile properties, good strength and wear resistance, and good machinability. Applications include rods, screws, shafts, knives, and hammers.

Steel S355J2 // Medium, low-carbon manganese steel. Easy to weld and offers excellent impact resistance. Applications include components for construction, energy, engineering, bridges, railways, and military parts.

Steel S235JR // Non-alloy structural steel, popular for construction and civil engineering. Excellent for welding. Applications include components for industrial facilities, offshore structures, bridges, oil and gas.

Aluminum 1 – 1,000 +/- 0.005”
  • High Strength
  • High Corrosion
  • Resistance
  • High Weldability
Standard Machined Finish
Tumbled
Bead Blasted (Sand or Glass)
Polished

Material Details

Fathom offers a variety of low carbon steels suitable for CNC machining, including:

Mild Steel 1018 // Widely available raw material. Mild steel can be welded and machined. It offers decent strength and ductility. Applications of steel 1018 include shafts, pins, and rods.

Mild Steel 1045 // High strength, easy to weld and machine, good tensile strength. Applications of 1045 steel include gears, axles, bolts, and support plates.

Mild Steel A36 // Also known as A36 Hot Roll Steel. Ductile, cost-effective, strong, and easy to weld or machine. Applications include structural components for buildings and bridges.

Steel C45 // Also known as general carbon engineering steel. Considered medium-strength steel, C45 has excellent tensile properties, good strength and wear resistance, and good machinability. Applications include rods, screws, shafts, knives, and hammers.

Steel S355J2 // Medium, low-carbon manganese steel. Easy to weld and offers excellent impact resistance. Applications include components for construction, energy, engineering, bridges, railways, and military parts.

Steel S235JR // Non-alloy structural steel, popular for construction and civil engineering. Excellent for welding. Applications include components for industrial facilities, offshore structures, bridges, oil and gas.

Brass 1 – 1,000 +/- 0.005”
  • High Strength
  • High Corrosion
  • Resistance
  • High Weldability
Standard Machined Finish
Tumbled
Bead Blasted (Sand or Glass)
Polished

Material Details

Fathom offers a variety of low carbon steels suitable for CNC machining, including:

Mild Steel 1018 // Widely available raw material. Mild steel can be welded and machined. It offers decent strength and ductility. Applications of steel 1018 include shafts, pins, and rods.

Mild Steel 1045 // High strength, easy to weld and machine, good tensile strength. Applications of 1045 steel include gears, axles, bolts, and support plates.

Mild Steel A36 // Also known as A36 Hot Roll Steel. Ductile, cost-effective, strong, and easy to weld or machine. Applications include structural components for buildings and bridges.

Steel C45 // Also known as general carbon engineering steel. Considered medium-strength steel, C45 has excellent tensile properties, good strength and wear resistance, and good machinability. Applications include rods, screws, shafts, knives, and hammers.

Steel S355J2 // Medium, low-carbon manganese steel. Easy to weld and offers excellent impact resistance. Applications include components for construction, energy, engineering, bridges, railways, and military parts.

Steel S235JR // Non-alloy structural steel, popular for construction and civil engineering. Excellent for welding. Applications include components for industrial facilities, offshore structures, bridges, oil and gas.

Fathom provide leading CNC machining services with a national footprint offering both metal CNC machining and plastic CNC machining. Need a material not listed? Talk to a Fathom Expert!

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About Machines

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Write up here about ‘3-5 axis mills and lathes, to swiss screw machines for fast turn precision and medical-grade projects,’ Using the latest software programming, operated by highly skilled CNC technicians.

REQUEST OUR MACHINE LIST

TOLERANCES
BY MACHINE
3-AXIS 5-AXIS EDM TURNING WATER JET PLASMA

PART SIZE

Minimum
Maximum

0 mm / 0 in

0 mm / 0 in

0 mm / 0 in

0 mm / 0 in

0 mm / 0 in

0 mm / 0 in

0 mm / 0 in

0 mm / 0 in

0 mm / 0 in

0 mm / 0 in

0 mm / 0 in

0 mm / 0 in

MINIMUM
FEATURE SIZE
0 mm / 0 in 0 mm / 0 in 0 mm / 0 in 0 mm / 0 in 0 mm / 0 in 0 mm / 0 in
MATERIAL
CHOICE
Metal or Plastic Metal or Plastic Metal Metal or Plastic Metal or Plastic Metal
STANDARD
TOLERANCE
Metal //
0.13 mm
0.005 inPlastic //
0.22 mm
0.008 in
Metal //
0.13 mm
0.005 inPlastic //
0.22 mm
0.008 in
Metal //
0.13 mm
0.005 in
Metal //
0.13 mm
0.005 inPlastic //
0.22 mm
0.008 in
Metal //
0.13 mm
0.005 inPlastic //
0.22 mm
0.008 in
Metal //
0.13 mm
0.005 in
LEAD
TIME
As Soon As
5 Days
As Soon As
5 Days
As Soon As
5 Days
As Soon As
5 Days
As Soon As
5 Days
As Soon As
5 Days

Post Processing
& Finishing

Post processing is an easy way to ensure a uniform appearance from part to part.

The final step in any CNC machining project will be finishing. Some CNC machines, like the CNC mill, may leave visible tool makrs on the piece after production. Tool marks may vary from slight to obvious, depending on the material and CNC process. Post processing is available for plastic and metal parts. This can include bead blasting to remove tool marks, or painting to achieve a desired color.

Finishes for Metal

  • Standard Machined Finish
  • Tumbled
  • Bead Blasted (Sand or Glass)
  • Polished
  • Anodized
  • Chemical Film
  • Passivation
  • Powder Coating
  • Electro Polishing
  • Electroless Nickel Plating
  • Silver Plating
  • Gold Plating
  • Painting

Finishes for Plastic

  • Standard Machined Finish
  • Flame or Vapor Polished (Acrylic Only)
  • Powder Coating
  • Tumbled
  • Painting

CNC Machining FAQ

CNC Machining with Fathom Manufacturing

Yes, our CNC machining team is part of a secure facility and follows processes to protect your IP. Fathom’s extensive certifications include ISO 9001:2015, ISO 9001:2015 Design, ISO 13485:2016, AS9100:2016, NIST 800-171, and ITAR.

Yes, our CNC machining team is part of a secure facility and follows processes to protect your IP. Fathom’s extensive certifications include ISO 9001:2015, ISO 9001:2015 Design, ISO 13485:2016, AS9100:2016, NIST 800-171, and ITAR.

Yes, our CNC machining team is part of a secure facility and follows processes to protect your IP. Fathom’s extensive certifications include ISO 9001:2015, ISO 9001:2015 Design, ISO 13485:2016, AS9100:2016, NIST 800-171, and ITAR.

Yes, our CNC machining team is part of a secure facility and follows processes to protect your IP. Fathom’s extensive certifications include ISO 9001:2015, ISO 9001:2015 Design, ISO 13485:2016, AS9100:2016, NIST 800-171, and ITAR.

Yes, our CNC machining team is part of a secure facility and follows processes to protect your IP. Fathom’s extensive certifications include ISO 9001:2015, ISO 9001:2015 Design, ISO 13485:2016, AS9100:2016, NIST 800-171, and ITAR.

Yes, our CNC machining team is part of a secure facility and follows processes to protect your IP. Fathom’s extensive certifications include ISO 9001:2015, ISO 9001:2015 Design, ISO 13485:2016, AS9100:2016, NIST 800-171, and ITAR.

Yes, our CNC machining team is part of a secure facility and follows processes to protect your IP. Fathom’s extensive certifications include ISO 9001:2015, ISO 9001:2015 Design, ISO 13485:2016, AS9100:2016, NIST 800-171, and ITAR.

General CNC Machining

Yes, our CNC machining team is part of a secure facility and follows processes to protect your IP. Fathom’s extensive certifications include ISO 9001:2015, ISO 9001:2015 Design, ISO 13485:2016, AS9100:2016, NIST 800-171, and ITAR.

Yes, our CNC machining team is part of a secure facility and follows processes to protect your IP. Fathom’s extensive certifications include ISO 9001:2015, ISO 9001:2015 Design, ISO 13485:2016, AS9100:2016, NIST 800-171, and ITAR.

Yes, our CNC machining team is part of a secure facility and follows processes to protect your IP. Fathom’s extensive certifications include ISO 9001:2015, ISO 9001:2015 Design, ISO 13485:2016, AS9100:2016, NIST 800-171, and ITAR.

Yes, our CNC machining team is part of a secure facility and follows processes to protect your IP. Fathom’s extensive certifications include ISO 9001:2015, ISO 9001:2015 Design, ISO 13485:2016, AS9100:2016, NIST 800-171, and ITAR.

What Can You
Fathom?

Companies all over the world trust Fathom with CNC machining projects that are time-sensitive, production run related, need strict security and certifications, and involve high-complexity and/or require high-precision. We’re driven to provide a DIFFERENTIATED customer experience with speed, urgency & agility.

Start a quote today or talk with one of our experts!

fathom yellow color logo
fathom yellow color logo