Manufacturer Part Number: 13-234-0|Parallel Type|Four FaceLength (mm)|Length (Inch)|12Height (mm)|Height (Inch)|2Parallelism|0.0003 inThickness (mm)|Thickness (Inch)|1Material|Steel; SteelNumber Of Precision - Ground Sides|4Parallelism (Decimal Inch)|0.0003Features|High Grade Hardened Tool; Precision GroundSquareness|0.0005inAccuracy (mm)|Accuracy (Decimal Inch)|Hardness|50 RcUNSPSC Code|PSC Code|