about us

company history

Mr. Jaeggin immigrated to the United States in the 1960¹s and proudly served in the U.S. armed forces. As an instrumentation engineer with the Lindheimer Observatory at Northwestern University, Mr. Jaeggin helped in building the first hand held camera used in Outer Space (via high altitude balloon launch pictured at right). His experience evolved further into space exploration and guided missile programs, which required tough machining challenges.


Later with his new company underway (est. 1970), Numerical Precision was among the first to use computer technology in manufacturing aerospace components.


Numerical Precision has been named Supplier of The Year by a leading aerospace corporation and has been nominated for national recognition by key customers. The firm won Small Business Association honors, twice receiving personal recognition from the President of the United States in Washington DC.


Special Accomplishments

• 100% safety record (no downtime injuries) for 34 consecutive years• Recipient of Heinz Winzeler Award from the Tooling and
   Manufacturing Association
• Apprentice of the Year honors for 1995 & 2005• Machine tool technology internships for high school students• Liberty Cannon Award program• St. Andrews Orion Rocket Team Sponsorship

Quick Response Teams

Recent trends in launch schedules and Department of Homeland Security priorities brought the need for immediate response capabilities at our firm. Quick Response Teams have been created to move immediately on special orders. Some of these teams (and their mission) are pictured below:

First Responders Fire Team, surgeons of hi-rel parts

Delta Force Team holding a delta frame for satellite application

Senior Management Team

Special Note On Our Founder

Mr. Egon Jaeggin continues to supervise the operations of his management team. He communicates with customers and serves on regional, national and international organizations and emphasizes to his employees the philosophy of "giving back" to the manufacturing community.


Recent Staff Contributions to Community and Industry

• President NTMA Chicago chapter
• Chairman TMA Education Foundation

• Board member National Tooling and Machining Foundation
• Current ISTMA board member and Vice President

• Chaired numerous NTMA committees & teams
• NTMA Industry Marketing Team

• President Tooling & Manufacturing Association (Chicago 1989-90)
• Member Illinois Defense Industry Association


Causes and Affiliations

"We Serve" Professional Involvement

• New apprenticeship legislation

• Local high school career days and training

• Liberty cannon award program

• www.xtrememaching.com

• Xtreme newsletter 
• TMA board of directors
• TMA business management committee
• TMA sales & marketing committee
• TMA apprenticeship committee
• TMA technology committee



From "High Stakes Machining," By Bill Kennedy, Contributing Editor, Cutting Tool Engineering:

"Aerospace manufacturer Numerical Precision, Inc., Wheeling, Ill. produces a variety of sophisticated aerospace and defense parts, including key components for the new James Webb telescope, communication satellites and the space shuttle. The company provides its customers with what it calls 'Hi-Rel Manufacturing.' Such unwavering reliability, the company says, is a result of its highly analytical corporate culture that emphasizes detailed manufacturing solutions for complex parts and assemblies." (For the full article please click here)


From Leonard Johnson- Orion II Rocket Team:

Hi Jim,

On behalf of the entire St. Andrews Team Orion II and family; I'd like to say; thank you, Egon and the entire Numerical Precision Team for a wonderful afternoon.  Receiving the Liberty Cannon Award and plaque was definitely a highlight achievement of the past four years working with these students and what they have accomplished in the field of aerospace study through rocketry.  Without Numerical Precisions dedicated and generous sponsorship; the St. Andrews Team Orion would not have gotten off the ground to achieve such great heights.  I am very happy that Egon is so interested and delighted in what the Team has accomplished over the years and hope that his dedication and love for the aerospace industry lives on in these boys for many years to come.  Please pass this e-mail on to Egon and again thank him for his very kind and genuine personality. It is a pleasure to be connected with such a classy organization who believes in supporting our future scientists, engineers and explorers.



Leonard Johnson- Orion II Project Manager

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a Division of

2008-2014  All Rights Reserved

AS9100-2009 Rev. C and ISO 9001:2008 certified ITAR registered manufacturer

Manufacturers of High Reliability Components
for Today's Aerospace Industries