Home / Proto J4990R-5/16 3/8" Drive Advanced Hex Socket - 5/16"

Proto J4990R-5/16 3/8" Drive Advanced Hex Socket - 5/16"

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  • Detail

    Proto J4990R-5/16 Includes

    • (1) Hex socket

    Proto J4990R-5/16 Features

    • Made using a heat-treated alloy for wear resistance which helps minimize distortion for a long life.
    • Hex opening holds the bit, allowing the bit holder to take the torque load.

    Proto J4990R-5/16 Specifications

    SIZE [IN] 5/16
    BIT LENGTH [IN] 1-5/8
    OVERALL LENGTH [IN] 2-23/32
    WEIGHT [LBS] 0.13
    DRIVE SIZE [IN] 3/8
    FINISH Full Polish
    LENGTH TYPE Standard
    UNIT OF MEASURE Fractional
    TIPS Hex
    SPECIFICATION AS SAE AS4984A
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