Spi 12-707-6 Steel Gage Block 0.5 in Grade 0 Nist

Product Description

The SPI 12-707-6 is a Grade 0 rectangular steel gage block measuring 0.50000 inches, designed for high-precision dimensional measurement and calibration work. Grade 0 represents a tight accuracy tolerance class suitable for laboratory and inspection-grade applications. The block includes NIST certification, meaning its dimensional accuracy has been verified against national standards. Machinists, quality technicians, and metrologists use gage blocks like this one to calibrate measuring instruments, set comparators, and verify part dimensions on the shop floor or in a calibration lab.

This gage block is appropriate for use in precision manufacturing environments, tool rooms, metrology labs, and quality control departments. It serves as a reference standard when setting up surface plates, height gages, or optical comparators. The 0.50000-inch size is a commonly specified increment in standard gage block sets and is frequently used as a standalone reference block for single-dimension verification tasks.

Key Features

• Grade 0 accuracy class for laboratory and inspection-grade precision requirements
• Nominal size of 0.50000 inches for single-dimension reference and calibration use
• Steel construction provides durability and long-term dimensional stability
• Includes NIST certification verifying traceability to national measurement standards
• Rectangular form allows wringing to other gage blocks for stacked-dimension setups

Compatibility

Designed as an OEM-style reference standard compatible with standard rectangular gage block sets and holders used in precision metrology and quality control applications.

Installation Notes

Gage blocks are handled and stored by calibration technicians and quality control professionals. Clean block surfaces with an appropriate gage block cleaning solution before and after use to prevent corrosion and maintain wringing capability. Store in a protective case away from humidity and temperature extremes to preserve dimensional stability. Do not drop or impact blocks, as this can alter their calibrated dimension and void certification.