Achieve precision in your machining and measurement tasks with these SPI Steel Parallels. This matched pair of parallels measures 6 inches long by 3/4 inch high by 3/8 inch thick, providing reliable support for workpieces during inspection or machining operations. Engineered with exceptional accuracy, these parallels feature impressive parallelism tolerances of 0.0003 inch and 0.002 inch, ensuring consistent and accurate measurements every time. The durable steel construction offers excellent stability and longevity in workshop environments. These parallels are ideal for machinists, toolmakers, and quality control professionals who require dependable dimensional references. Use them for setup, inspection, and layout work where maintaining precise parallel surfaces is critical to achieving quality results. This matched pair ensures consistent performance across your measurement and machining applications.