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    Mount Type
    Mount Type
    StemDovetail
    Lug
    Base Mount Type
    Base Mount Type
    Magnetic
    Clamp On
    Arm Flexibility
    Arm Flexibility
    Jointed
    Rigid
    Flexible
    Base Type
    Base Type
    V-Grooved
    Adjustable
    Flat
    Base Thread Size
    Base Thread Size
    1/4"-20
    5/16''-18
    8-32
    M5
    M8
    M10
    Base Material
    Base Material
    Iron
    Aluminum
    Stainless Steel
    Steel
    Zinc
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
    click to learn more about
    RoHS (Restriction of Hazardous Substances)
    RoHS (Restriction of
    Hazardous Substances)
    RoHS Compliant
    Base Thread Pitch
    Base Thread Pitch
    0.8 mm
    1.25 mm
    1.5 mm
    REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)
    REACH (Registration,
    Evaluation, Authorization
    and Restriction of Chemicals)
    REACH Compliant
    Upright Post Height
    Upright Post Height
    6 7/8"
    6.9"
    7 1/16"
    7 5/16"
    8 7/8"
    Upright Post Diameter
    Upright Post Diameter
    3/8"
    7/16"
    15/32"
    5/8"
    Manufacturer Model Number
    Manufacturer Model Number
    657AA
    657P
    657W
    For Maximum Shaft Diameter
    For Maximum Shaft Diameter
    6"
    9"
    Body Material
    Body Material
    Aluminum
    Stainless Steel
    Maximum Clamping
    Maximum Clamping
    1 1/2"
    1 7/8"
    2"
    2 1/4"
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