Achieve precision measurements with the SPI Rectangle Steel Gage Block. This 0.2-inch Grade AS-1 gage block delivers exceptional accuracy for your dimensional measurement needs. Manufactured by MSC Industrial under the trusted SPI brand, this high-quality calibration tool comes complete with NIST Certification, ensuring reliable measurement standards for your industrial applications. The rectangular steel construction provides durability and stability for consistent measurements over time. Perfect for quality control departments, machine shops, and inspection areas where dimensional accuracy is critical. This gage block (Part #15-069-8) is an essential component for building gage block stacks, calibrating measuring instruments, and setting up precision machinery. The included NIST certification documentation validates the block's accuracy and traceability to national measurement standards.