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CNC Punching
Sheet Metal

Punching sheet metal takes an equal amount of precision and skill, especially when delivering critical sheet metal parts used in the information & communications, medical, aerospace & defense, and energy industries. Both vital skills are in play when Pinnacle’s Technical and Production teams start on a project, leveraging our design and plan expertise to create detailed punch schematics and manufacturing know-how while tooling and running jobs.

General Dimensional Tolerances

Dimension Range

DIM ≤ 8″ [203mm]
8″ [203mm] < DIM ≤ 16″[406mm]
16″[406mm] < DIM ≤ 36″[914mm]

Edge to Edge,
Hole to Hole,
Edge to Hole on Flat

± 0.005″ [0.13mm]
± 0.010″ [0.25mm]
± 0.015″ [0.38mm]

Edge to Hole to Bend

± 0.010″ [0.25mm]
± 0.015″ [0.38mm]
± 0.020″ [0.38mm]

Bend to Bend

± 0.020″ [0.51mm]
± 0.020″ [0.51mm]
± 0.030″ [0.76mm]

Angular Tolerance


The tools we use for

Precision punching

The production floor at Pinnacle Precision features six CNC turret presses that can handle up to 30 tons with up to 40 tool stations per machine. Pinnacle regularly invests in punch tools to match customer designs and part requirements. Partnered with Pinnacle’s Technical and Production crew, these machines allow us to punch a variety of sheet metal grades to the tightest tolerances.

  • (2) CNC Turrett Presses with 60” X 100” stock size capacity and 40 tool stations
  • (1) CNC Turrett Presses with 52” X 100” stock size capacity and 33 tool stations
  • (3) CNC Turrett Presses with 52” X 100” stock size capacity and 40 tool stations

General material tolerances

how we deliver

The Pinnacle process

Customers from leading medical, aerospace, information and communications technology, energy, and entertainment companies come to Pinnacle Precision because they’ve experienced a new level of precision. 

Our teams boast decades of experience, working with product sizes ranging from inches to yards and a broad range of sheet metal alloys and finishes. 

Each project that comes into Pinnacle’s Southern California headquarters receives the highest level of attention. Our Customer Support team excels in translating customer needs into actionable plans for our Technical, Production, and Quality Assurance teams. 

Our manufacturing experts utilize CNC laser cutting and punch presses for precise sheets that are then delivered to our machining, forming, welding, and finishing departments. From there, we help our customers with assembly, hardware installation, and seal applications before Pinnacle’s quality assurance team carefully looks at the final product. 

The difference between Pinnacle and any other company is our team-forward integrated approach and solutions-first mentality. We look forward to proving our promise to you.

a question we get:

Why is CNC important for sheet metal punching?

Shops like Pinnacle pride themselves on delivering precision sheet metal parts used in dozens of industries. Not many places boast our decades of experience here, including several 30-plus-year veterans on our production floor. 

So, why do we rely on “computer numerical control” (CNC) during our manufacturing processes? Because our

customers work in some of the most technically sensitive industries where precision equals life-saving machinery. Plus, CNC enables a faster and more accurate process while producing complex shapes and patterns. 

At Pinnacle Precision, we leverage the power of technology and the experience of our Technical and Production teams to deliver a new level of precision.


Who relies on Pinnacle Precision for CNC punching services?

Pinnacle Precision manufactures parts used across the world’s most advanced and vital industries, including medical, aerospace, information & communications, energy, and entertainment. Our advanced approach to every capability means that parts created here can withstand the harshest environments and look good year after year.

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How can we help you today?

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Sheet Metal Fabrication


man spraying the product