1. #1
    Hi Folks,

    We have received a granite surface plate that we ordered from RDG Tools and on unboxing it appears that there is a very fine crack running across the top of the plate. I cannot detect anything running my nail across it, but has anyone experienced or seen anything similar on a granite plate? It is very hard to detect if it is a crack or just an artifact in the natural material. Advice appreciated :)

    Click image for larger version. 

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  2. #2
    The only thing I can think of is dye penetrant testing, that would definitely detect a crack if there is one,

    - Nick
    Life is a learning and growing experience.

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  4. #3
    Also if you suspend and gently strike it with a plastic hammer it won't "ring" cleanly if it's cracked
    Life is a learning and growing experience.

  5. #4
    Quote Originally Posted by magicniner View Post
    Also if you suspend and gently strike it with a plastic hammer it won't "ring" cleanly if it's cracked
    Thanks Nick!

    Not sure about this idea as its pretty heavy but I have used crack detector kits in the dim and distant past. Will do a search and see if I can find one that is suitable and fits within our budget ie cheap :)

  6. #5
    Wouldn't accept it my self and send it back. I've never seen crack or defect in any new surface or lightly/correctly used surface plate that is designed to hold any sort of precision.!

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