• Ko-ken 3/8 Sq. Dr. Extension Universal Socket 12mm (6-Point) — 150mm Front View
  • Ko-ken 3/8 Sq. Dr. Extension Universal Socket 12mm (6-Point) — 150mm mechanical drawing
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Ko-ken 3/8 Sq. Dr. Extension Universal Socket 12mm (6-Point) — 150mm

$101
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SKU: 13146M.150-12

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    Ko-ken 3/8 Sq. Dr. Extension Universal Socket 12mm (6-Point) — 150mm Front View

    Ko-ken 3/8 Sq. Dr. Extension Universal Socket 12mm (6-Point) — 150mm
    Reach Recessed 12mm Fasteners With Built-In Flex

    Reach Recessed 12mm Fasteners With Built-In Flex

    A long 3/8" drive extension universal socket that combines reach and angle access in one tool. The 6-point 12mm socket end helps you keep solid contact on stubborn fasteners, while the universal section lets you work around brackets, hoses, and castings when you can’t get a straight shot. Built for metric work and tight-access repairs where a standard socket + u-joint + extension stack-up is too bulky.

    Specs

    Spec

    Detail

    Drive Size

    3/8" Square Drive

    Socket Size

    12mm

    Point Style

    
6-point

    Overall Length (L)

    150mm

    D1 Size

    18mm

    D2 Size

    19mm

    H Size

    8mm

    Metric / SAE

    Metric

    Notes

    Magnet / socket-with-magnet tagged

    Where This Helps (Real-World Use)

    • Recessed 12mm bolts/nuts where a normal socket won’t reach past obstructions
    • 12mm fasteners behind brackets (alternators, compressors, guards, covers) where you need a slight angle
    • Tight swing-room jobs where a u-joint + extension combo gets too tall or flops around
    • When you want fewer connections (less wobble) while still gaining flex and reach

    What It Works With

    • Any 3/8" drive ratchet (hand ratchet)
    • 3/8" drive torque wrench (for controlled tightening)
    • 3/8" drive impact tools (tagged as “Impact Tool”)

    How to Use (3 Steps)

    1. Seat the 12mm 6-point end fully on the fastener.
    2. Keep the universal section as straight as possible, then add only the angle you need.
    3. Apply steady torque; re-seat if you feel it start to climb or slip.

    In the Box

    • (1) 3/8" Sq. Dr. Extension Universal Socket — 12mm, 6-point, 150mm long

    Safety Notes

    • Universal joints reduce effective strength at high angles—avoid max angle under heavy load.
    • Always confirm full socket engagement before applying torque.
    • Use the right tool for the job: if you need extreme torque, straighten the joint or step up to a more appropriate setup

    California Proposition 65 Warning

    WARNING: These products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.