Check your hardness tester for accuracy against a block with a known hardness rating.

Confirm your durometer hardness tester is taking accurate readings.

A true source of measurement, use these gauge blocks to calibrate measuring equipment, mark precise layouts, or position your fixture or machine components just right.

Use the gauge blocks in these sets individually or together to take precise measurements or calibrate your measuring tools.

Use the Mitutoyo gauge blocks in these sets individually or together to take precise measurements or calibrate your measuring tools. They are often used to mark layouts, align machine components, and check that parts are within tolerance.

Set the standard for your height gauges. These calibrators combine gauge blocks—a true source of measurement—and a micrometer head for refining the gauge block measurement even more.