Precision CNC Machining Services

Engineered for complex geometries, tight tolerances, and large envelope components. We deliver precision parts that keep your assembly lines moving.

Our Machining Approach

Built for the Complex & the Heavy

At Kelley Engineering, CNC machining is more than a standalone service—it’s a core part of our integrated manufacturing capabilities. We produce precision components for customers across a wide range of industries, combining advanced machining with rigorous quality standards and the capacity to handle everything from small, high-volume parts to large, complex assemblies.

Whether you need prototype quantities, production runs, or large machined weldments, our experienced team delivers the accuracy, consistency, and reliability your project demands.

Tight Tolerances

Consistently holding tolerances up to +/- .0005″ on complex features.

Large Envelopes

High-capacity bed sizes to accommodate massive structural components.

AS9100 & ISO 9001:2015

Rigorous CMM inspection and quality documentation for every batch.

Turnkey Ready

Machined parts feed directly into our welding and assembly departments.

Technical Specifications & Capabilities

Detailed parameters for your engineering and purchasing teams.
  • 3, 4, and 5-Axis CNC Milling
  • CNC Turning with Live Tooling
  • Large Envelope & Vertical Machining
  • Prototyping & First Article Inspection
  • High-Volume Production Runs
  • Aluminum (6061, 7075, etc.)
  • Stainless Steel (304, 316, 17-4)
  • Carbon & Alloy Steels
  • Brass & Copper
  • Engineered Plastics (Delrin, PEEK)
  • Exotic Alloys (Inconel, Titanium)
  • In-house Hardware Insertion
  • Grinding & Surface Finishing
  • Sub-assembly & Kitting
  • Heat Treating (via trusted partners)
  • Plating & Anodizing (via trusted partners)

Powered by Advanced Machining Centers

Our shop floor features modern, high-performance equipment including Haas and Mazak multi-axis centers to ensure maximum uptime and precision for your parts.

Our Work

Technical Specifications & Capabilities

Detailed parameters for your engineering and purchasing teams.

5-Axis Aluminum Housing
Aerospace Component

Large Envelope Steel Frame
Industrial Manufacturing

Precision Turned Shafts
High-Volume Automotive Run

Have a precision
machining project?

Upload your STEP, IGES, or DXF files today. Our engineering team provides fast, accurate quotes.