Manufacturer Part Number: P06025050|Parallel Type|Four FaceLength (mm)|Length (Inch)|6Height (mm)|Height (Inch)|1/2Parallelism|0.0001 Per 6" inThickness (mm)|Thickness (Inch)|1/4Material|Steel; SteelNumber Of Precision - Ground Sides|4Parallelism (Decimal Inch)|0.0001 Per 6"Features|Adjacent Sides Square; Opposite Sides ParallelSquareness|0.0005" Per 1"Accuracy (mm)|Accuracy (Decimal Inch)|0.000250Hardness|UNSPSC Code|PSC Code|