• Ko-ken 1/2" Sq. Dr. Nut Twister Set (17mm–25.4mm) — 6 Pieces Front View
1 1

Ko-ken 1/2" Sq. Dr. Nut Twister Set (17mm–25.4mm) — 6 Pieces

$277
Sale Sold out

SKU: RS4127/6

Shipping calculated at checkout.

Status : In Stock
Save

    Guaranteed Secure Checkout

    Easy Online Returns

    Return this item within 90 days of purchase. Read Return Policy

    View full details
    Ko-ken 1/2" Sq. Dr. Nut Twister Set (17mm–25.4mm) — 6 Pieces Front View

    Ko-ken 1/2" Sq. Dr. Nut Twister Set (17mm–25.4mm) — 6 Pieces
    Grab Rounded-Off Nuts & Bolts with a Helical Bite

    Grab Rounded-Off Nuts & Bolts with a Helical Bite

    The Ko-ken RS4127/6 Nut Twister set is built for removing rounded-off nuts and bolts when a standard socket just slips. Each socket uses a helical, inward-tapering 6-tooth design that locks onto damaged fasteners for a stronger hold during removal. This 6-piece 1/2" drive set covers common larger metric sizes and comes organized on a 200mm rail for quick access in the box or service cart.

    Specs

    Spec

    Detail

    Brand

    Ko-ken

    SKU

    RS4127/6

    Drive Size

    1/2"

    Drive Shape

    Square

    Type

    Nut Twister Set (on rail)

    Socket Length

    42mm

    Rail Length

    200mm

    Included Sizes

    17mm, 19mm, 21mm, 22mm, 24mm, 25.4mm

    Included Sizes (Quick Reference)

    • 17mm
    • 19mm
    • 21mm
    • 22mm
    • 24mm
    • 25.4mm

    What It’s For

    • Rounded-off hex nuts and bolts that standard sockets can’t grip
    • Worn or partially damaged fastener heads (when the fastener is still intact/unbroken)
    • Faster “save the day” removal without immediately stepping up to more destructive methods

    How It Works

    The Nut Twister’s helical teeth taper inward. As you apply turning force, the internal profile bites down and tightens its grip, helping prevent slip-out on rounded fasteners.

    How to Use (Best Results)

    1. Choose the correct size (too large won’t bite; too small won’t seat).
    2. Seat the socket fully onto the fastener.
    3. Apply steady turning force for removal.
      Note: Works best when the fastener is not broken and you can fully seat the socket.

    In the Box

    • 6x Nut Twister sockets: 17, 19, 21, 22, 24, 25.4mm
    • 200mm socket rail