What is gauge block?

A gauge block is a precision measuring tool used in metrology to calibrate and verify the accuracy of measuring equipment such as micrometers, calipers, and height gauges.

Gauge blocks are typically made of high-quality steel, carbide, or ceramic materials and come in various sizes, shapes, and grades. They are manufactured to very tight tolerances, often within a few microns, to ensure their accuracy and reliability.

Gauge blocks are stacked together or wrung together using special techniques to create known dimensions for measuring purposes. They can be used individually or in sets to calibrate and verify the accuracy of measuring instruments with high precision.

Gauge blocks are widely used in industries such as manufacturing, machining, and quality control to ensure the accuracy and consistency of measurements. They are an essential tool for achieving precise and reliable measurements and are considered the primary standard for length measurement in many applications.