Standridge Grade-A Black Granite Surface Plate 40" x 34.5" x 6.5"

This Standridge Grade-A black granite surface plate measures 40 inches by 34.5 inches by 6.5 inches and is designed for precision inspection, layout, and metrology applications. Manufactured from high-quality black granite, this surface plate provides excellent flatness, stability, and vibration resistance. Grade-A accuracy makes it suitable for quality control, machining, and calibration environments where dimensional precision is critical. Ideal for machine shops, inspection labs, and manufacturing facilities.