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    System of Measurement
    System of Measurement
    Inch
    Metric
    Shape
    Shape
    Rectangle
    Square
    Grade
    Grade
    0
    AS-1
    AS-2
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
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    Number of Pieces
    Number of Pieces
    9
    10
    12
    34
    35
    36
    47
    81
    87
    Manufacturer
    Manufacturer
    Mitutoyo
    Starrett
    Inside Length
    Inside Length
    3"
    5"
    10"
    Number of Holes
    Number of Holes
    0
    1
    4
    5
    6
    13
    14
    18
    Height
    Height
    2"
    3"
    4"
    6"
    RoHS (Restriction of Hazardous Substances)
    RoHS (Restriction of
    Hazardous Substances)
    RoHS Compliant
    Hole Style
    Hole Style
    Threaded
    Unthreaded
    Counterbored
    REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)
    REACH (Registration,
    Evaluation, Authorization
    and Restriction of Chemicals)
    REACH Compliant
    Overall Height
    Overall Height
    2"
    2 5/8"
    4 1/4"
    Overall Width
    Overall Width
    4"
    6"
    Hole Thread Size
    Hole Thread Size
    1/4"-20
    5/16"-18
    3/8"-16
    5/8"-11
    Total Number of Holes
    Total Number of Holes
    0
    1
    11
    23
    Hole Diameter
    Hole Diameter
    5/16"
    11/32"
    25/64"
    7/16"
    1/2"
    11/16"
    Number of Mounting Holes
    Number of Mounting Holes
    19
    25
    28
    Mounting Hole Thread Size
    Mounting Hole Thread Size
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