Manufacturer Part Number: 637-7535|Length (mm)|Minimum Height (Inch)|3/4Minimum Height (mm)|Minimum Height (Decimal Inch)|Maximum Height (Inch)|1-3/4Maximum Height (mm)|Parallelism|0.0008inMinimum Thickness (Decimal Inch)|Minimum Thickness (Inch)|1/4Minimum Thickness (mm)|Maximum Thickness (mm)|Maximum Thickness (Inch)|1/4Maximum Thickness (Decimal Inch)|Overall Height (Decimal Inch)|Height Increments (Decimal Inch)|Height Increments (Fractional Inch)|1/8Accuracy (Decimal Inch)|0.0010Material|Tool SteelHardness|52 to 58 RCFeatures|Includes|Wooden CaseAdditional Information|Holes are Designed for Easier Handing & Set-Ups; Made from Fine Quality Tool Steel Stress Relieved against Distortion & Precision & Ground & Hardened; Precision Parallels are Recommended for Layout Work & Standards & Set-UpsThickness x Height Dimension 1|(1) Pair 1/4 in x 1 in; (1) Pair 1/4 in x 1-1/4 in; (1) Pair 1/4 in x 1-1/8 in; (1) Pair 1/4 in x 1-3/4 in; (1) Pair 1/4 in x 1-3/8 in; (1) Pair 1/4 in x 1-5/8 in; (1) Pair 1/4 in x 3/4 in; (1) Pair 1/4 in x 7/8 inThickness x Height Dimension 2|Product Width Diameter (Decimal Inch)|Product Type|Catalog Industry Number|Number Of Pieces|18Length (Inch)|6Manufacturer's Part Number|Sold As Pair|9 PairProduct Service Code|UNSPSC Code|