About Four A Manufacturing

We specialize in CNC precision machining, offering custom cutting capabilities for various metals in Chino Hills, California.

A close-up of a manufacturing machine working on a circuit board. The image focuses on electronic components and a mechanical arm or tool positioned above the board, which is filled with small, intricate parts and traces.
A close-up of a manufacturing machine working on a circuit board. The image focuses on electronic components and a mechanical arm or tool positioned above the board, which is filled with small, intricate parts and traces.
Contact Us
A person is using precision tools on a piece of metal secured in a vise, likely working on detailed craftsmanship or metalwork.
A person is using precision tools on a piece of metal secured in a vise, likely working on detailed craftsmanship or metalwork.
A close-up view of a metal lathe with intricate metallic curls and shavings being formed as the machine operates. The image captures the mechanical precision of the lathe's spinning, with a focus on the textures and shapes of the metal components.
A close-up view of a metal lathe with intricate metallic curls and shavings being formed as the machine operates. The image captures the mechanical precision of the lathe's spinning, with a focus on the textures and shapes of the metal components.

Our Expertise

With over thirty years of experience, our team provides design and engineering support for aerospace, medical, and plumbing industries.

woman wearing yellow long-sleeved dress under white clouds and blue sky during daytime

Four A's precision machining exceeded our expectations in quality and service. Highly recommend!

Phylrich, Costa Mesa

a pile of gold colored objects on a table
a pile of gold colored objects on a table

The team at Four A provided exceptional engineering support and delivered on time every time.

RSS Machine, Anaheim

A metal-cutting machine in action, with a saw blade slicing through pipes and coolant fluid being applied to reduce heat and friction. The environment has an industrial and mechanical feel with visible metal shavings and gears.
A metal-cutting machine in action, with a saw blade slicing through pipes and coolant fluid being applied to reduce heat and friction. The environment has an industrial and mechanical feel with visible metal shavings and gears.
★★★★★
★★★★★

Location

Located in Chino Hills, California, Four A specializes in precision CNC machining for various industries.

Address

15086 La Palma Dr. Chino Hills, CA 91710

Hours

9 AM - 5 PM

Contact

(714)-615-9204

Hours

Monday - Friday

Precision

Expert CNC machining for diverse industries.

Contact:

lrh@fouramfg.com

(714)-615-9204

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