King Tester

For over 80 years, King Tester Corporation has been a premier manufacturer of King Brinell, and distributor of Ernst Rockwell testers for some of the largest names in Aerospace, Defense, Manufacturing, and Heat Treating today.
King Tester Corporation was founded in 1936 by Andrew King to satisfy the need for a portable full load Brinell tester. After experiencing early success.  Over the last 80 years the company has provided the highest quality portable Brinell Testers and related equipment.  Our customers range from the largest multinationals to small privately owned metal processors.  We serve a wide range of industries including aerospace, rail, auto, foundries, steel and aluminum mills, calibration companies, oil drilling, oil field service.
We are very proud of the quality of products which are rugged and last for many years in constant daily use.  



  • King Brinell Bench & Portable Testers
    Ernst by King Rockwell Testers      
  • Microscopes
  • Test Blocks


Company Information

308 Schell Lane

Phoenixville, PA 19460

Phone: 610-279-6010

Fax: 610-279-4596