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SPI Roughness Gages and Hardness Testers

SPI Measure Up. Every Fraction of an Inch Counts.

Whether you are looking for a hardness tester, surface roughness tester or a microscope SPI has a quality solution for you.

Surface Roughness

Surface Roughness Gages

Surface Roughness Gage Accessories

Surface Finish Comparators

Hardness Testing

Hardness Calibration Test Blocks

Hardness Testing File Sets

Bench Top Hardness Testers

Portable Electronic Hardness Testers

Vision & Optical Testing

Loupes

Microscopes

Microscope & Magnifier Accessories

Pocket & Hand-Held Optical Comparators

Optical Comparators & Profile Projectors

Optical Comparator & Profile Projector Accessories

Optical Comparator Charts & Reticles

Handheld Magnifiers

Visor & Headpiece Magnifiers

Inspection Surface Plate Cleaners