Our Services
Built on Precision.
Trusted for Decades.
Delta Machine & Tool Co., Inc. was founded in Delaware County, PA and is currently located in West Chester, Pennsylvania in 1975 with a single commitment: to manufacture precision components that perform without exception in the world's most demanding environments.
"We don't build parts. We build confidence — the kind that keeps aircraft flying and defense systems operating."
Over five decades, that commitment has earned us a position as a trusted Tier-1 supplier to leading aerospace and defense OEMs. Our AS9100 Rev D certification, continuous investment in advanced CNC technology, and culture of zero-defect accountability have transformed Delta from a regional job shop into a strategic manufacturing partner.
Rev D
The Principles
Behind the Parts
Uncompromising Quality
Every dimension matters. Our AS9100 Rev D system isn't a compliance exercise — it's the architecture of our entire operation, governing every decision from material selection to final shipping.
Schedule Accountability
We plan, we communicate early when challenges arise, and we deliver on our commitments — because your production line depends on it.
True Partnership
We embed ourselves in your supply chain, learn your programs, and invest in the relationship. When your design needs DFM optimization or your schedule needs flexibility — we're the partner who shows up.
Continuous Improvement
The same drive that took us from a small job shop to a Tier-1 aerospace supplier pushes us forward today. We invest in equipment, training, and processes — so our performance keeps improving as your programs evolve.
Where Precision
Gets Made
Facility Overview
- Location West Chester, PA 19382
- Shifts Multiple
- Climate Control Inspection Facilities
- Quality Cert AS9100 Rev D
Key Equipment
- Turn-Mill Okuma LB3000EX-II
- CNC Milling 3 & 4 Axis Centers
- Inspection FAIR
- Tolerances ±.0003" Capability
The Standard We
Hold Ourselves To
Our certifications aren't checkboxes — they're the foundation of every shipment we make and every program we support.
AS9100 Rev D
The aerospace industry's most rigorous quality management standard. Our QMS governs every stage — from order entry and material receipt through machining, inspection, and delivery.
Aerospace QMSCoC / FAIR / AS9102
First Article Inspection Reports to AS9102 standard. Full ballooned drawing packages, dimensional reports, material certifications, and process documentation provided on every new part number.
First ArticleModel-Based Definition (MBD) - NEED DECRIPTIVE TEXT
Production Part Approval Process documentation and Certificates of Conformance delivered with every order to your requirements — ensuring full traceability from raw material to finished component.
DocumentationPerformance Excellence Award
Recipient of a Performance Excellence Award from a leading aerospace & defense OEM — recognition for sustained zero-PPM quality and on-time delivery across multiple consecutive program years.
Award Recipient
Let's Machine
Your Next Part.
Upload your drawings and specifications. Our engineering team will review and respond with a detailed, competitive quote.