Accurate Brinell Results

KingTester provides certified Brinell testers, test blocks, and scopes built for repeatable accuracy — ensuring your hardness results meet ASTM and ISO standards every time.

Metal Testing

Eliminates the need for a computer

KINGSCAN® V

Test Block Certification Registration

Test Block

Portable Testing Anywhere

Designed for field and shop-floor use, the King Brinell Tester delivers lab-quality accuracy in a portable form.

Accuracy and Repeatability

Every King Brinell Tester is engineered for precise, repeatable Brinell hardness results that meet ASTM E10 and ISO 6506 standards.

Rugged, Low-Maintenance Design

Built for heavy-duty industrial environments, the King Brinell Tester features a durable steel frame and simple mechanical operation.

Compatible with King Test Blocks and Scopes

Pair your tester with King certified Brinell test blocks and high-precision scopes for a complete testing system.

Since 1936

Metal Hardness Testing Made Easy

We help manufacturers and metal processors across a broad spectrum of industries easily meet their quality standards by providing the right metal hardness testing equipment in the right place at the right time.

MADE IN THE USA

All King Scopes Meet ASTM E-10 Specifications

KingScope

Case Studies

Improving how companies meet quality standards.

The most versatile, reliable, and easy to use Portable Brinell Testers available.

PORTABLE BRINELL TESTER

Metal hardness testing is not a one-size-fits-all job.

Specialty Testers

When tests and results are unique and individualized, the tester should be too.

Brinell Testers, Test Blocks, and Scopes You Can Trust

Complete Brinell Testing Solutions for Precision and Reliability

ASTM-compliant hardness results

Ability to customize test head, base or accessories

Core Industries

Complete Brinell Hardness Testing Solutions

Trusted in Every Industry That Demands Metal Strength

KingTester’s portable Brinell hardness testers, certified test blocks, and precision scopes are used worldwide across critical industries to ensure metal integrity, quality, and compliance. Whether verifying advanced alloys in aerospace, maintaining structural safety in railways, or meeting API and ASTM standards in oil and gas applications, KingTester provides accurate, repeatable results you can depend on.

Our equipment empowers professionals in foundries, automotive, construction, utilities, military, and more to perform on-site testing with lab-grade precision — ensuring every component meets the demands of safety, longevity, and performance.

KingTester Corporation

KING Tester Corporation is the industry leader in portable Brinell hardness testers, Rockwell testers, patented test blocks and microscopes. Our customers include the largest names in aerospace, rail, auto, foundries, steel and aluminum mills, calibration labs, oil and gas, heat treaters, wear parts, military, infrastructure, construction and utilities.

Accredited Precision

KING Tester is ISO/IEC 17025 accredited by A2LA, ensuring every instrument and calibration meets strict international testing and measurement standards.

Certified to ASTM Standards

All KING Tester products are certified and calibrated per ASTM requirements, delivering consistent, traceable, and reliable hardness results you can trust.

Made in the USA

Every KING portable Brinell tester is proudly made in the USA, designed and assembled with the highest manufacturing quality for long-lasting performance.

Over 80 Years of Proven Reliability

Founded in 1936 by Andrew King, KING Tester has served industries worldwide for more than eight decades — from small metal processors to global manufacturers — with equipment built to perform in the toughest environments.