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Q-Mark offices will be closed Monday, May 30th in observance of Memorial Day.
Q-Mark offices will be closed Monday, May 30th in observance of Memorial Day.

Diamond Styli

  • No Build-Up

    (Microphotograph of a ruby sphere with material build-up on its equator) Unlike ruby spheres, no substance sticks to diamond spheres, not even the softest aluminum alloys. Diamond spheres retain their high-precision spherical form at all times, thereby preventing additional measuring...

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  • No Wear

    (Microphotograph of a ruby sphere with a flat spot caused by wear) Diamond is the hardest known natural material on earth. Pure diamonds can only be scratched by other diamonds. Diamonds resist breaking under impact and are impervious to strong...

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  • Solid Diamond, or Diamond Coated Spheres?

    Solid Diamond, or Diamond Coated Spheres?

    Solid Diamond Spheres When probing hard or abrasive surfaces, use solid diamond spheres. Diamond will not wear, even when used with high probing or scanning forces. Solid diamond spheres are ground and polished to Grade 10 sphericity (<250 nm). (Shown:...

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  • Diamond Styli - For Ultimate Performance

    Diamond Styli - For Ultimate Performance

    Q-Mark is pleased to offer precision diamond styli in nearly any standard thread size and configuration.  Diamond styli are an excellent choice for demanding applications. Their performance is unmatched when measuring hard, abrasive, or very soft surfaces.  They are available...

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