Koken PK3763/6 | Wobble-Fix Extension Bar Set 3/8" inch Sq. Drive

(2 reviews) Write a Review
$84.52
SKU: PK3763/6
Availability: Factory Stock (38)
Technical Specifications
Input Drive Size 3/8
Drive shape Square
Type Wobble-Fix Extension Bar
Output size 32-250mm
Opening ABS tray
Pcs 6 pieces
  • Koken PK3763/6 | Wobble-Fix Extension Bar Set  3/8" inch Sq. Drive
On Sale

Koken PK3763/6 | Wobble-Fix Extension Bar Set 3/8" inch Sq. Drive

The Koken PK3763/6 | Wobble-Fix Extension Bar Set 3/8" inch Sq. Drive is available to order online. Contact us if you find the Koken PK3763/6 | Wobble-Fix Extension Bar Set 3/8" inch Sq. Drive at a better price.

Wobble-Fix refers to the section of the extension bar that holds the socket. Specifically, in reference to the flexibility of movement that a socket has when attached to an extension bar with this feature. Wobble-Fix extension bars offer two different secure solutions for holding a socket in place. 

The “Fix” solution holds the socket securely and steadily on the extension bar permitting no movement. The “Wobble” solution permits movement of up to a 15 degree angle

PK3763/6 Wobble-Fix Extension Bar Set

Ko-ken sockets are manufactured according to DIN/ISO standards.


Lead Time Information
  • 5
    The best wobble plus extension set

    Posted by ASM on 26th Mar 2022

    I’ve owned the Snap On version which has the exact same lengths and costs over $200. This is just as good and, honestly, I prefer it due to the knurling on the base as opposed to the shaft.

    It works flawlessly, both locking the socket firmly when pushed all the way down, and allowing excellent articulation and retention when the socket is free to “wobble.” Truly the best of both worlds, regular and wobble, and having them on the same extension adds convenience given how well these work.

  • 5
    Great Koken quality as usual. Very happy with purchase.

    Posted by Robert Swinamer on 23rd Nov 2021

    Other manufactures make these as well, but my understanding is Koken invented the wobble fix so why not purchase from the company that invented the tool. Great quality and very functional.