Precision meets durability with the SPI 11/32" Diameter Chrome Steel Gage Ball. Engineered to exacting standards, this calibration tool features an impressive 0.0001 inch tolerance and Grade 25 accuracy, making it ideal for the most demanding dimensional measurement applications. The 63 RC hardness rating ensures exceptional wear resistance and longevity even with frequent use. This AFBMA-certified gage ball maintains consistent dimensions and surface finish, providing reliable reference measurements for calibration, layout, and machine setup tasks. Manufactured by MSC Industrial under the trusted SPI brand, this chrome steel gage ball delivers the performance and reliability that precision measurement professionals demand. Perfect for quality control departments, machine shops, and manufacturing facilities where dimensional accuracy is critical to operations.