• Ko-ken 3/8" Sq. Drive Starter Bundle V.2 Front View
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Ko-ken 3/8" Sq. Drive Starter Bundle V.2

$263
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SKU: KB-3B5Z-V2

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    Ko-ken 3/8" Sq. Drive Starter Bundle V.2 Front View

    Ko-ken 3/8" Sq. Drive Starter Bundle V.2
    A Pro-Grade 3/8

    A Pro-Grade 3/8" Starter Kit for Speed + Access

    This premium bundle combines the strength, versatility, and precision of Ko-ken’s Z-Series into one complete setup—built for techs who want fewer slips, fewer dropped fasteners, and faster workflow. It pairs a 72-tooth Z-Series ratchet with a pin-less universal joint for tight access, plus a 10-piece Nut Grip socket set that holds fasteners securely without magnets.

    Specs

    Spec

    Detail

    Drive Size

    3/8" square drive

    Ratchet

    Z-Series 72T Ratchet, 280mm length (3725Z-280)

    Universal Joint

    3/8" universal joint, pin-less (3771Z)

    Sockets Included

    10 piece Nut Grip socket set (RS3450M/10)

    What Makes Nut Grip Different

    Holds fasteners securely without magnets to reduce slips/drops

    Why This Bundle Works So Well

    • 72-tooth ratchet for short swing arcs in cramped bays and compartments
    • Pin-less universal joint keeps things compact and helps reach angled fasteners (less hassle than pinned styles)
    • Nut Grip sockets hold onto fasteners without magnets—great when you’re working overhead or deep in an assembly

    What It’s Great For

    • Tight access bolts where you can’t keep a straight shot (u-joint + 72T helps)
    • Overhead or deep-pocket fasteners where dropping hardware wastes time (Nut Grip helps retain it)
    • Daily-use 3/8" work where you want one “grab-and-go” kit that covers a lot of common tasks

    How to Use (3 Steps)

    1. Select the Nut Grip socket size and fully seat it on the fastener.
    2. If access is angled or obstructed, add the 3/8" pin-less universal joint between ratchet and socket.
    3. Apply steady torque—keep the socket seated to maintain grip and reduce slip.

    In the Box

    • 3725Z-280 — 3/8" Z-Series 72T Ratchet, 280mm
    • 3771Z — 3/8" universal joint, pin-less
    • RS3450M/10 — 10 piece Nut Grip socket set

    Safety Notes

    • Always fully seat the socket before applying torque.
    • Use the universal joint to improve access—not as a substitute for proper alignment.
    • Follow the fastener manufacturer’s torque specs during reassembly.