Starrett Rs 1.000 A1 Steel Gage Block 1 Inch Grade 0

Product Description

The STARRETT RS 1.000 A1 is a rectangular steel gage block manufactured to Grade 0 accuracy. Gage blocks are precision reference standards used to calibrate measuring instruments, set comparators, and verify dimensional tolerances on machined parts. This block is ground and lapped to a nominal size of 1.00000 inches, meeting the tighter dimensional tolerances required by Grade 0 classification. It is sized and constructed for use in quality control labs, tool rooms, and production floor inspection stations where traceable dimensional standards are required.

This gage block is suited for metrology and dimensional inspection applications in manufacturing, machining, and precision assembly environments. Grade 0 blocks are appropriate for use as calibration references and for verifying the accuracy of micrometers, calipers, height gauges, and other precision measuring tools. This single-block unit is typically used by quality technicians, tool and die makers, and metrologists requiring a reliable 1-inch reference standard.

Key Features

• Grade 0 accuracy classification for tighter dimensional tolerance and calibration-grade use
• Nominal size of 1.00000 inches for reliable 1-inch reference measurement
• Steel construction for durability and wringing compatibility with other steel gage blocks
• Rectangular form for stable use with gage block holders and accessories
• Single-block package suitable for adding to an existing gage block set or replacing a worn piece

Compatibility

Designed as an OEM-style replacement or supplemental reference standard compatible with standard rectangular gage block holders and accessories used in Grade 0 and general-purpose metrology setups.

Installation Notes

Gage blocks should be handled by qualified metrology or quality control personnel. Before use, clean block surfaces with an appropriate solvent to remove protective oil and inspect for burrs or damage that could affect accuracy. Store blocks in a protective case away from temperature extremes to maintain dimensional stability. Blocks should be periodically recalibrated against a national or international measurement standard per applicable quality system requirements.