It started with an idea..

Precision Metal Grinding, backed by over 50 years experience in grinding much of the world’s finest-quality sheet for the aerospace industry. PMG is positioned to become a strategic partner in support of your logistic and supply chain goals.
Precision Metal Grinding has developed a unique combination of resources for metal finishing and precision grinding, so much so, that we designate our production methods to be capable and reliable and are prepared at all times to demonstrate its superiority.
Our time proven competitive advantages include: Equipment Capacity & Capability Skilled and Knowledgeable Workforce Company Experience and Technical Skills to meet Industry Demands



Our Difference

Equipment Capacity & Capability:

Our dedicated machinery for grinding, coupled with our very high-level capabilities for meticulous and knowledgeable hand finishing (as required) results in absolute uniformity, sheet by sheet … surfaces entirely free of blemishes, scratches, blisters and other unsightly defects. Our grinding machines can grind down to .008″ with a tolerance of + / – .001″.

Skilled and Knowledgeable Workforce:

Precision Metal Grinding beginnings are rooted in the requirements of the aircraft industry. Our earliest work, involved preparation of skins for the then-new generation aircraft. And, over the years, our precision grinding capability has expanded to where we now can grind any alloy to meet the requirements for any industry.

Company Experience and Technical Skills to meet Industry Demands:

Our relations with aerospace organizations has allowed us to fine-tune and perfect two related techniques:

1. Grind titanium and aluminum sheet to a defect free surface where its quality (blemish free and uniform finish) supersedes what the mills are able to produce.

2. Repair skin sections blemished during production to a uniform, consistent finish to achieve an even thickness match with other sheet sections. Where blemishes mar the skin, the area is checked to ascertain that the defect has not penetrated the cladding. This area is then worked carefully to remove the blemish and to attain uniform thickness with the surrounding area. In no case is more material removed than the depth of the defect.

Go With The Company
with Over 50 Years
of Grinding Experience!


Mario Robles, CEO
Precision Metal Grinding

Message from the President

Precision Metal Grinding is a privately held company with a team that knows aerospace and partners with top Aluminum mills worldwide.

We have been deeply involved with aerospace precision metal grinding and polishing in the last 50 plus years of company history. We are specialists in sheet and plate grinding and polishing. Many of the aircraft in service today contains our work.

At Precision Metal Grinding we are a leader and pioneer in the category of precision metal grinding. Metal grinding is important for quality in aircraft manufacturing, I feel the sense of appreciation toward precision metal grinding has faded because of the rise of automation.

We welcome automated processes in our industry but I wonder and question if the current trend in advancement will achieve the experience of the human eye.  I believe bringing more complete approach to metal grinding leads to better quality products, that is why I always say “our employees are our biggest asset!”

At Precision Metal Grinding we strive to passionately create impressive value in the beginning and end of the supply chain.  It is our ultimate mission and sheer pleasure if we turn metal products from dull and lifeless to something that is technically perfect in record time.

I cannot stress enough that precision metal grinding is important to keeping the sense of quality throughout the process of product development. We have close, long-term relationships with our production partners that expect a high level of quality. Metal mills look to us to keep their quality and material performance up to tight technical standards the aerospace industry requires.

We feel pride and responsibility when we get involved in your project and through hard work, strive to face the challenge in creating value in metal grinding. Our mission is to continue to contribute to higher quality aircraft while providing peace of mind to our customers.

Contact Us Today!