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Some new type of screw are becoming popular.
These are high durability, capable of transmitting a high torque and able to reduce coming-out. Ko-ken Tool Co., Ltd. holds an official license to use the trademarks TORX®, TORXplus® and LHSTIX®.

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    TORX® and TORXplus® are registered trademarks of Acument Intellectual Properties LLC. Ko-ken Tool Co., Ltd. holds an official license to use the trademarks TORX® and TORXplus®.

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    LHSTIX® is registered trademark of OSG SYSTEM PRODUCTS Co., Ltd.
    Ko-ken Tool Co., Ltd. holds an official license to use the trademark LHSTIX®.

SAFETY ADVICE

  • General

    • Make sure you use the right size socket whose opening fits the nut.
    • For use with electric or air IMPACT wrenches select IMPACT sockets only.
    • When using nut runners or IMPACT wrenches always wear safety goggles.
    • Plastic or rubber handles are not intended to act as insulation.
    • Never substitute a HAND Socket for a POWER or IMPACT Socket, or a POWER Socket for an IMPACT socket.
    • Items in the catalogue marked “!” can be loaded to torque values which may cause breakage. In the interest of your own safety, always apply load evenly and progressively to avoid breakage and possible injury.
  • Sockets

    • Any socket showing cracked walls, battered or damaged points, or other marks of wear should be replaced.
  • Ratchets / Handles

    • A ratchet is not a hammer.
    • Never use pipes or other improvised attachments on handles to increase leverage.
  • Extension Bars

    • A single extension bar of the required length should be used, not a combination of several short extension bars.
  • Adaptors

    • Adaptors should only be used when absolutely necessary. Be reminded that the torque applied by a bigger drive handle using a “down” adaptor (reducer) can often exceed the torque rating of the smaller drive socket.
      Always stay within safe working limits. Reducers are not warrantable.
  • Bits

    • Ball point bit sockets have less strength due to the special design. Make sure to use them correctly.
    • Tamper Resistant TORX® Bit Sockets have less strength due to special design. Make sure to use it correctly.

TERMS OF USE

  • TERMS AND CONDITION OF USE OF KO-KEN WEBSITE

    This web site is owned and operated by Ko-ken Tool Co., Ltd.("Ko-ken") By accessing, browsing, and / or using the pages in this Site, you agree to the following terms and conditions. If you do not agree, you should not use this Site.

  • RESTRICTIONS ON USE OF THE MATERIALS

    All materials published in this Web site are protected by copyright laws, and other applicable laws of each country of the world and treaty provisions. Except for personal or non-commercial internal use, you are not allowed to use (including, without limitation, copying, modifying, reproducing in whole or in part, uploading, distributing, licensing, selling and publishing) any of the materials, without obtaining the prior written consent of Ko-ken.
    "Ko-ken" used in this web site is registered trademark.

  • ABOUT LINK

    You can link this web site without our permission.
    You should agree that the URL will be moved or delayed without announce.

  • PRIVACY POLICY

    Ko-ken Tool Co., Ltd. commits to maintain the privacy and security of customer’s personal information.

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