Is A Used Surface Plate Good?

A used surface plate just showed up on my doorstep...amazing what
follows me home sometimes. :<)

This surface plate is a Rahn 34" x 36" black granite with two ledges.

So, how does one decide if a surface plate is "good"?

If it is "bad", how do you decide whether or not it is worth
refurbishing? How much does it cost to refurbish a surface plate and
how do they do it?

And if it is not worth refurbishing, what have you used an old surface
plate for? I've already got a gravestone. ;<)

Thanks for any suggestions, comments or wisecracks.

TMT

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Relevant Pages

  • Re: Is A Used Surface Plate Good?
    ... And if it is not worth refurbishing, what have you used an old surface ... be a very bad surface plate to be worse than most anything else you'd be doing layout on. ... It's not uncommon to use drill blanks or other round objects in the process of inspecting or making setups. ...
    (rec.crafts.metalworking)
  • Re: Is A Used Surface Plate Good?
    ... > This surface plate is a Rahn 34" x 36" black granite with two ledges. ... > And if it is not worth refurbishing, what have you used an old surface ... They're super nice for laying out with a height gage, or even inspecting ...
    (rec.crafts.metalworking)
  • Re: Is A Used Surface Plate Good?
    ... My wife was thinking of a number of them in the kitchen. ... thick enough to use and just under the way to heavy. ... How much does it cost to refurbish a surface plate and how do they do it? ... And if it is not worth refurbishing, what have you used an old surface ...
    (rec.crafts.metalworking)
  • Re: Is A Used Surface Plate Good?
    ... > This surface plate is a Rahn 34" x 36" black granite with two ledges. ... > And if it is not worth refurbishing, what have you used an old surface ... surface plate to whatever flatness you need for a very reasonable price. ...
    (rec.crafts.metalworking)
  • Re: Is A Used Surface Plate Good?
    ... > This surface plate is a Rahn 34" x 36" black granite with two ledges. ... standard you have for "straight" and try to find any gaps between it and ... > And if it is not worth refurbishing, what have you used an old surface ... there's any visible gaps, get out the feeler gages and see how bad they ...
    (rec.crafts.metalworking)