• Ko-ken 1/2" Starter Bundle - Nut Grip & Z-Series Front View
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Ko-ken 1/2" Starter Bundle - Nut Grip & Z-Series

$356
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SKU: KB-4B5Z

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    Ko-ken 1/2" Starter Bundle - Nut Grip & Z-Series Front View

    Ko-ken 1/2" Starter Bundle - Nut Grip & Z-Series
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    1/2" Pro Starter Kit for Tight Access + Better Fastener Grip

    This 1/2" square drive starter bundle combines three go-to Ko-ken essentials: a Z-Series flexible ratchet, a double universal joint, and a full NUT GRIP socket set. It’s built for real-world service work where access is limited and fasteners aren’t always perfect—so you can get on the bolt, stay on the bolt, and keep moving.

    Specs

    Spec

    Detail

    Drive Size

    1/2" square drive

    Included Items

    4772Z — 1/2" double universal joint (pin-less mechanism)

    4725Z — 1/2" square drive 72-tooth flexible Z-Series ratchet

    RS4450M/11 — 1/2" NUT GRIP socket set (11 pieces)

    Socket Range (set)

    14mm–24mm

    Socket Count (set)

    11 pieces

    Built for the stuff that wastes time

    • Tight swing room where a straight socket won’t line up cleanly
    • Jobs where a universal joint is mandatory (offset fasteners, boxed-in housings)
    • Fasteners that need extra bite from a grippy socket design (especially after corrosion, dirt, or wear)

    Included in the kit

    • 4772Z — 1/2" double universal joint (pin-less mechanism)
    • 4725Z — 1/2" square drive 72-tooth flexible Z-Series ratchet
    • RS4450M/11 — 1/2" NUT GRIP socket set (11 pieces), 14–24mm

    3-step setup for awkward fasteners

    1. Pick the correct NUT GRIP socket size for the fastener.
    2. Add the double universal joint when you need angle correction.
    3. Drive with the Z-Series flexible ratchet for control in tight spaces.

    Important notes

    • Always keep the tool fully seated before applying force.
    • California Proposition 65: This product page includes a Prop 65 warning.