Reference Standards

In the field of metrology, reference standards are precisely manufactured objects or instruments that serve as the foundation for measuring other objects. These standards are established with known and traceable measurements that are used as benchmarks for ensuring accuracy, consistency, and reliability in the measurement process. Reference standards are used to calibrate and verify the accuracy of other measuring instruments and tools.

Gauge Block Set (R. Hewitt)

Gauge Blocks

Gauge Blocks
Gauge (or Gage) blocks are precision-ground, rectangular or square blocks made from high-quality steel, ceramic, or other materials. They are manufactured to very precise dimensions with extremely tight tolerances. Gage blocks come in various sizes, and they are used as building blocks to create precise measurement standards. By stacking gage blocks together in various combinations,...

Surface Plates

Surface Plates
A surface plate, is a large, flat, precision tool used as a reference surface for measuring and inspecting the flatness, straightness, parallelism, and other geometric features of workpieces. Surface plates are an essential part of precision measurement and quality control processes in various industries, including manufacturing, engineering, and metrology. Surface plates are commonly made of...
Gauge Blocks

Gauge Blocks

Gauge (or Gage) blocks are precision-ground, rectangular or square blocks made from high-quality steel,...
Surface Plates

Surface Plates

A surface plate, is a large, flat, precision tool used as a reference surface for measuring and inspecting...
Other Granite Master Tools

Other Granite Master Tools

Granite Master Squares A granite master square, also known as a granite square or inspection square,...