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    System of Measurement
    System of Measurement
    Inch
    Metric
    Shape
    Shape
    Rectangle
    Square
    Grade
    Grade
    0
    AS-1
    AS-2
    Manufacturer
    Manufacturer
    Mitutoyo
    Starrett
    Number of Pieces
    Number of Pieces
    9
    10
    12
    34
    35
    36
    47
    81
    87
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
    click to learn more about
    Gauge Block Grade
    Gauge Block Grade
    0
    AS-1
    AS-2
    REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)
    REACH (Registration,
    Evaluation, Authorization
    and Restriction of Chemicals)
    REACH Compliant
    RoHS (Restriction of Hazardous Substances)
    RoHS (Restriction of
    Hazardous Substances)
    RoHS Compliant
    Number of Holes
    Number of Holes
    0
    1
    5
    6
    18
    Height
    Height
    2"
    3"
    4"
    Hole Style
    Hole Style
    Unthreaded
    Threaded
    Counterbored
    Total Number of Holes
    Total Number of Holes
    0
    1
    11
    23
    Hole Thread Size
    Hole Thread Size
    5/16"-18
    3/8"-16
    5/8"-11
    Hole Diameter
    Hole Diameter
    11/32"
    25/64"
    1/2"
    11/16"