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    System of Measurement
    System of Measurement
    Inch
    Size
    Size
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    5/16"
    Collet Type
    Collet Type
    R85C
    ER-32ER-16
    ER-25ER-20
    16C100-TG
    Face Type
    Face Type
    RoundHexagon
    Square
    Grip Range
    Grip Range
    0.281"-0.312"
    0.297"-0.312"
    For Use With
    For Use With
    Milling Machines
    Lathes
    Material
    Material
    Steel
    Overall Length
    Overall Length
    1.06"
    1.22"
    1.38"
    1.57"
    2.386"
    3.27"
    4.089"
    4.31"
    TIR (Total Indicated Runout) Accuracy
    TIR (Total Indicated
    Runout) Accuracy
    0.0007"
    0.0008"
    0.0025"
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
    click to learn more about
    Maximum Body Diameter
    Maximum Body Diameter
    0.677"
    0.83"
    1.03"
    1.278"
    1.3"
    Approximate Diameter Compression
    Approximate Diameter
    Compression
    1/64"
    1/32"
    Body Diameter
    Body Diameter
    0.95"
    1 1/4"
    1.89"
    Internal Thread Size
    Internal Thread Size
    7/16"-20
    1.041"-24
    1 11/16"-20
    Specifications Met
    Specifications Met
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    External Thread Size
    External Thread Size
    1.238"-20
    M47.5
    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
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