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    • Ko-ken USA

    Westford, MA 01886

    COMPANY OVERVIEW

    About Ko-ken USA

    Contact

    7 Lyberty Way, Unit D
    Westford, MA 01886
    http://www.kokenusa.com
    351-500-6638

    More Info on Ko-ken USA

    Our parent company, Ko-ken Tools, is a fourth-generation family owned and operated business in Japan, with 140+ employees. The focus of the business is entirely on sockets and socket wrenches. The entire manufacturing process is in-house at Ko-ken, from design to cold forging, heat treat, and plating.

    Products & Press Releases

    Photo courtesy of Ko-ken USA
    pinless
    Tool Accessories

    Pinless Double Universal Joints

    March 4, 2025
    The Ko-ken Pinless Double Universal Joints are connected with mutually engaged hexahedrons, which disperse the load across the whole outer circumference of the tool. The ball ...
    Ko-ken Wobble Fix Extension Bars
    Tool Accessories

    Wobble Fix Extension Bars

    Dec. 4, 2021
    The Ko-ken Wobble Fix Extension Bars are designed to offer two different secure solutions for holding a socket in place. Wobble-Fix refers to the section of the extension bar ...
    Ko-ken Foam Sets
    Tool Organizers

    Foam Sets

    Nov. 4, 2021
    The Ko-ken Foam Sets can be dipped in oil or grease and then easily cleaned. The foam used in each Ko-ken Foam Set is called Zotefoam, a closed cell and cross linked polyethylene...
    Ko Ken
    Ratchets

    72T Z-Series Ratchet

    Jan. 4, 2021
    The Ko-ken 72T Z-Series Ratchet combines a low backlash, small size, and has a 10 percent higher torque limit in comparison to the company's 36 tooth ratchet. Whereas the 36 tooth...
    Spark plug sockets with spring clip.
    Specialty Tools

    Spark Plug Sockets with Spring Clip

    Jan. 3, 2014
    The Ko-ken Tools Spark Plug Sockets with Spring Clip is designed to securely grip a spark plug at its hexagonal part by two stainless spring clips. An internal brass guide holds...
    3441m 11288690
    Tool Accessories

    Universal Nut Grip Socket

    Jan. 3, 2014
    The Ko-ken Tools Universal Nut Grip Socket has twin balls at the 6-point opening. This tool is used to hold a bolt or nut tightly for safe and reliable work.
    115g Pic 11288685
    Specialty Tools

    Nut Setters with Sliding Magnet, No. 115G

    Jan. 3, 2014
    The Ko-ken Tools Nut Setters with Sliding Magnet, No. 115G, provides bolt clearance and magnetic function at the same time. The 115G is mainly designed for assembly-line work....
    14401m 11288681
    Tool Accessories

    Impact Sockets (Thin Walled)

    Jan. 3, 2014
    The Ko-ken Tools Impact Sockets (Thin Walled) series are an addition to the product line. The straight-shaped body allows for deeper access in narrow spaces. The impact sockets...
    Universal double joint impact swivel sockets, No. 13772-P
    Tools

    Universal double joint impact swivel sockets, Nos. 13772-P and 14772-P

    Dec. 3, 2012
    Koken universal double joint impact swivel sockets, Nos. 13772-P and 14772-P, allow the user to reach into even tighter spots than one regularly can with an impact swivel. This...
    Koken Flexible Head Ratchet 10746790
    Ratchets

    3/8" Flexible Head Ratchet

    July 24, 2012
    Koken Tools USA offers the 3/8" Flexible Head Ratchet with New Head Lock Button. The position of Head Lock Button is moved to side of the joint part to reduce the possibility ...

    Videos & Resources

    Ko-ken Universal Double Joint
    Video Network

    Video: Ko-ken Pinless Double Universal Joints

    March 4, 2025
    In this video, Ko-ken USA demonstrates the Pinless Double Universal Joints.

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    All content from Ko-ken USA

    Kokentoolszseriestools 10363035
    Ratchets

    Z-Series of hand tools

    Sept. 19, 2011
    Koken Tools launched a new line of products with the Z-Series, including various types of sockets and socket sets, ratchets, hinge handles, extension bars, universal joints and...