Ray-Check Manufacturing machinists are qualified professionals with utmost regard for the manufacture of standard calibration blocks, as well as having the ability to configure custom test blocks per customer specification. RCM brings forty-nine years of experience to the industry.

It is the policy of Ray-Check Manufacturing to ensure that our products be manufactured in compliance with specifications to which they are designed. The products themselves become integral parts of inspection and quality systems throughout the Non-destructive Testing Industry. We are audited and certified by Lockheed Martin as an approved source.