Precision meets reliability with the SPI 17 mm Diameter Chrome Steel Gage Ball. Manufactured to Grade 25 Accuracy standards, this high-quality dimensional measurement tool is essential for calibration, layout, and machine setup applications. The chrome steel construction ensures durability and consistent performance in various measurement scenarios. With its precise 17 mm diameter, this gage ball provides dependable reference measurements for quality control processes and dimensional verification tasks. Part of SPI's trusted line of measurement tools, this gage ball (Part #14-827-0) delivers the accuracy professionals demand for critical measurement applications. Perfect for industrial settings, manufacturing facilities, and quality assurance departments where precise dimensional references are required.