Achieve precision measurements with SPI's Gage Block Flat Jaws, designed for use with rectangular gage blocks. This pair of flat jaws features an impressive parallelism accuracy of +/-0.00004 inch, ensuring exceptional measurement reliability in demanding applications. With a 6-inch overall length and 0.75-inch jaw thickness, these robust jaws provide the stability needed for consistent results. The set includes two pieces that work together to deliver consistent, accurate measurements time after time. These specialized flat jaws are an essential tool for quality control professionals, machinists, and engineers who require absolute precision in their dimensional measurements. Built to SPI's exacting standards, these gage block flat jaws represent the pinnacle of measurement technology for industrial applications requiring the highest level of accuracy.