Putting 0.370 shafts in my Tileist 680 irons

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By Rogier V

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  1. Rogier V

    Rogier V

    Hello there,

    I'm thinking about putting some KBS tour C-tapers 130x's in my 680's. These shafts are 0.370. Are the 680-hosels 0.355 or 0.370? Can they be bored out? Thoughts anyone?

    Thanks,

    Rogier

  2. Ken W

    Ken W
    Baltimore, MD

    Sounds like a good project. The 680 hosels are .355 but installing the C-tapers you have can be done easily. I recommend having a specific .370 reamer drill bit for the job but a new sharp 3/8 bit will do even though it is .375. The good thing about the 680s is they are very soft steel and the existing bore acts as a guide to make a straight drilling easier. After that, it's just a normal shaft installation process. I will usually check loft and lie specs afterwards as a finishing touch.

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