Celebrating Over 60 Years of Excellence!

AS9100B and ISO 9001:2008 Certified




API Precision Machining, Inc., was established in 1945 as Commerce Welding and Mfg., Inc.  This independent machining business was started by Charles S. Hejkal and his co-worker, Clarence Grieving.


In 1957, Mr. Hejkal and Mr. Grieving established a "sister" company called Aircraft Products, Inc.  Aircraft Products secured contracts with several international companies and has earned a stellar reputation for quality work and customer satisfaction.


In October 2002, ownership of the company was realigned to include partnership of Mr. Hejkal and his daughter Karen Hejkal Lynch.


In July 2003, Aircraft Products, Inc., became a certified woman-owned business known as API Precision Machining, Inc. under the direction of Karen Lynch.  Quality products and services provided by API Precision Machining, Inc. continue to be a priority of our 73 year-old company.


Our company has been recognized for its outstanding reputation:

  • Saturn/Apollo Program Supplier Award and Roll of Honor in the Smithsonian Institution
  • E-Systems Supplier Achievement Award
  • Rockwell International Top Performance Supplier
  • Alcatel Achievement Award
  • Small Business Administration Contractor of the Year Nomination
  • Boeing Top Supplier Achievement Award
  • Atlas Copco Top Performing Supplier 2008

API Precision Machining, Inc., continues to serve the manufacturing industry of today as a supplier of quality machined parts.

617 W. Commerce St., Dallas, TX 75208   //  (Ph) 214-748-4994 / (Fax) 214-748-1891  //   © 2018 all rights reserved