A place where amazing things Get Done!

Omanson Precision Engineering occupies 10,000 square ft. with 15-20 skilled work team, located in the Heart of the US Aerospace Industry and Central to Manufacturing Support Vendors also near major International and Regional Airports in Chino, CA.

We specializing in manufacture of precision aerospace parts and assemblies with machining capabilities up to 120 inches in length, 30 inches in width and 22 inches in height.

We are specialized in 3, 4 and 5 axis milling. We can run from small part like 1” X 1” X 0.5” to large parts like 120” X 30” X 20” or 80” X 60” X 30”.

Our specialties include all grades of Aluminum alloys, Titanium, Steel, Stainless Steel and Non-Ferrous Alloys. Our trained professionals work with cutting edge technology to manufacture parts to exact customer specifications.

23 years in business

Omanson Precision Engineering is minority owned business established in 1998. OPE is specialized in manufacturing of precision aerospace parts, assemblies, fabrication, tooling fixtures and gages.

Loved by customers

We have been supplying parts to Boeing, Lockheed Martin, SpaceX, Hughes, GKN, Raytheon, and several OEM companies. We are approved supplier for Boeing and Lockheed Martin.

Our Assurance

– OPE is AS9100D and ISO 9001:2015

– Our quality and delivery rating has consistence from 99.5% to 100%.


– CNC Mill Vertical 3 Axis 5Nos

– CNC Mill Vertical 4 Axis 1 No

– CNC Mill Vertical 5 Axis 1 No

– Manual Mill Vertical 5 Axis 1 No

– Manual Mill Vertical 5 Axis 1 No

– Lathe Horizontal


– Victor DCM-5 Band Saw

– 16 Speed Heavy Duty Drill Press

– 5 Speed Light Duty Drill Press.

– Heavy Duty 14” Cut Off Saw

– Doringer 14” Cold Saw

– Multipurpose Combination Disc &Belt Sander

– Combination Vertical & Horizontal Band Saw.

– 90 Degree and Straight Die Grinders

– 5000 LB. Toyota Forklift

Programming Handling Capabilities

OPE has complete in house CAD/CAM multi axis programming capability. All parts are programmed utilizing Catia V-5. We can import/export 3D models.

In addition we have PCDMIS Inspection, Job Boss 2 ERP Manufacturing Software, – QA-CAD 2020 and K COMPARE.

Work Space