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What Is CNC Machining?

March 19, 2026Insights buuuuueueueueAbout 6 minutes
CNC machining setup with precision inspection tooling over a machined metal component

When it comes to dream builds, there’s pushing the limits, and then there’s taking a Dodge Viper, lifting it, adding massive tires, and preparing it for dirt, dunes, and canyon runs. That’s exactly what Matt Brown from SuperfastMatt set out to do. It’s a project that demands precision, creativity, and access to high-quality custom parts—which is where SendCutSend comes in.

  • Builder: Matt Brown, aka SuperfastMatt
  • Project: Off-Road Dodge Viper
  • Industries: Automotive, Fabrication
  • Sendcutsend Services: Laser Cutting, Bending, Anodizing, Dimple Forming

How CNC Machining Works

A digital CAD model is converted into machine instructions. The machine then follows programmed toolpaths to cut, drill, mill, or turn the material into the final geometry.

Common CNC Processes

  • CNC milling for prismatic geometries
  • CNC turning for round parts
  • Drilling and tapping for hole features
  • 5-axis machining for complex surfaces
ProcessGeometry TypeTypical MaterialsBest Use Cases
CNC MillingPrismatic / complex 3DAluminum, steel, plasticsHousings, brackets, plates
CNC TurningCylindricalSteel, brass, aluminumShafts, bushings, threaded parts
Drilling & TappingHole featuresAll machinable materialsFastener interfaces, assemblies
5-Axis MachiningFreeform / complex surfacesTitanium, aluminum, high-performance alloysAerospace, medical, complex geometries
Overview of the most common CNC machining processes and their typical applications.
Close-up of CNC machining operation
CNC processes can produce tight-tolerance parts across metals and plastics.

Why Engineers Use CNC Machining

It is widely used because it combines precision, repeatability, and material versatility. CNC machining works well for prototypes, bridge production, and end-use components.

CNC machining is often the fastest path from CAD to a functional production-grade part.

If you need help choosing a process, see our CNC machining services.

PREMSA Engineering Team

Written by

PREMSA Engineering Team

Manufacturing engineers focused on CNC machining, industrial production, and practical design-for-manufacturing guidance.

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