Precision CNC Milling &
Turning Services.
Serving Aerospace, Automotive, and Metal Fabrication sectors with milling and tight-tolerance turning. We take on the difficult jobs other shops won't quote.
The G & R Difference
G & R Machining LLC was established in 2025 by Jeffery Whitman.
After a decade in the industry working across Aerospace, Oil & Gas, Industrial, Automotive, and Railroad sectors, Jeffery founded G & R when presented with an opportunity from a previous employer to serve as a trusted 3rd-party vendor.
Built on a foundation of efficiency and diversification, G & R was designed to provide stability and consistency rarely seen in the industry. We deliver Aerospace-grade quality available for all industries.
Unlike many modern shops owned by investors who rely on others to tell them how a part should be made, G & R is owned and operated by a competent programmer and machinist.
"We understand the different processes and order of operations necessary to have the most precise and consistent parts come out of the machine, every time."
We have a passion for the difficult parts—the small-to-medium sized, tight tolerance components that other shops no-quote because they lack the capability.
Quality Commitment
Working with Perry & Johnson Registrars, Inc.
We are currently in the process of obtaining our ISO-9001:2015 / AS-9100D / No Design Certification.
Core Competencies
Precision machining services for small to medium sized, tight tolerance parts.
CNC Milling
High-speed vertical machining for aluminum, steel, and exotics. Capable of handling complex aerospace geometries.
- 47" x 20" Table Capacity
- Rigid Tapping & High RPM
Multi-Axis Turning
Dual-spindle technology allows for "Done-in-One" machining, reducing handling and improving accuracy.
- Secondary Spindle Turning
- Part Transfer Capability
Manual Machining
Support for repair work, simple tooling, and one-off prototypes that don't require CNC programming.
- Quick Turnaround Repairs
- 18" Swing Capability
Machine Inventory
Our floor is equipped for versatility, from heavy turning to intricate 4 axis mill work.
Vertical CNC Milling
Daewoo DMV 3016D
Vertical Machining Center (2003)
Daewoo DMV 3016L
Vertical Machining Center
CNC Turning & Mill-Turn
Daewoo Puma 240L
Medium CNC Lathe (2005)
Mori Seiki SL150S
Small Dual Spindle Lathe
Manual Machining
Alliant Vertical Mill
Manual Knee Mill
HL-460 Manual Lathe
Manual Precision Lathe
Quality Assurance
OGP Basic Bench 14
Optical Comparator
Programming & Support
CAD/CAM Software
Programming System
Serving Diverse Industries
Every job is held to the highest standard, no matter what industry or what tolerances are on a print.
Aerospace
Specializing in small/medium tight tolerance parts.
Oil & Gas
High-durability components.
Automotive
Precision production runs.
Railroad & Industrial
Heavy-duty applications.
QUALITY FIRST
Every Part. Every Time.
Verification & Compliance
We don't just cut metal; we verify every tolerance. Our commitment to quality is backed by rigorous inspection processes.
Certifications
We are aggressively pursuing aerospace standard accreditation.
Metrology Lab
Equipped to verify tight tolerances and complex geometries.
- Granite Surface Plates (Grade AA)
- Mitutoyo Digital Micrometers (0-12")
- Bore Gages (.250" - 6.00")
- Pin Gage Library (Classes ZZ & X)
- CMM Capability (Partner Network)
Data Security
We handle CUI and ITAR technical data with strict adherence to US regulations.
- NIST 800-171 Compliant Practices
- Secure File Transfer (No Email Attachments)
- US-Based Data Sovereignty
Request a Quote
Upload your STEP, IGES, or PDF files. We typically respond within 24 hours.