• Ko-ken 3/8" Starter Bundle - Nut Grip & Z-Series Front View
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Ko-ken 3/8" Starter Bundle - Nut Grip & Z-Series

$299
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SKU: KB-3B5Z

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    Ko-ken 3/8" Starter Bundle - Nut Grip & Z-Series Front View

    Ko-ken 3/8" Starter Bundle - Nut Grip & Z-Series
    A 3/8

    A 3/8" Starter Bundle Built for Tight Access and Stubborn Fasteners

    This Ko-ken starter bundle combines three “reach + grip + speed” essentials in one kit: a flexible Z-Series ratchet, a pin-less double universal joint, and a full 3/8" NUT GRIP socket set. Use it to get on fasteners at awkward angles, keep better hold on worn hardware, and work faster without constantly swapping tools.

    Specs

    Spec

    Detail

    Brand

    Ko-ken

    Drive Size

    3/8" square drive

    Bundle Type

    Ratchet + universal joint + socket set

    Ratchet Included

    2726Z-3/8 (1/4" body, 3/8" head), 72-tooth, flexible Z-Series, reversible

    Universal Joint Included

    3772Z (3/8" double universal joint, pin-less mechanism)

    Socket Set Included

    RS3450M/11 (3/8" NUT GRIP socket set, 11 pieces)

    Finish

    Chrome

    Why This Bundle (Quick Guide)

    • Better access: double universal joint + flex head helps reach fasteners that are off-angle or partially blocked
    • Better grip: NUT GRIP sockets help hold onto worn, shallow, or slightly rounded fasteners
    • Better workflow: a “core 3/8 setup” for general service, teardown, and in-bay repairs

    What It Works Well On

    • Tight-clearance fasteners where a straight extension won’t line up
    • Angled approach bolts (brackets, clamps, sensors, housings, covers)
    • Hardware that’s starting to round or is greasy/corroded
    • General 3/8" drive service work where you want one grab-and-go kit

    How to Use (3 Steps)

    1. Pick the NUT GRIP socket size you need and fully seat it on the fastener.
    2. Add the double universal joint when you need angle correction to line up your ratchet.
    3. Use the flex-head Z-Series ratchet to keep steady pressure and work in limited swing room.

    In the Box

    • 2726Z-3/8 — 72-tooth flexible Z-Series ratchet (1/4" body, 3/8" head)
    • 3772Z — 3/8" double universal joint (pin-less mechanism)
    • RS3450M/11 — 3/8" NUT GRIP socket set (11 pieces)

    Safety Notes

    • Always fully seat the socket before applying torque.
    • Keep the universal joint aligned as straight as possible under high load to reduce tool stress.
    • Use controlled, steady force—especially on compromised fasteners.

    Video Demo

    • Add your product demo video here (show flex head + double U-joint access and NUT GRIP hold on worn fasteners).