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Post by socalrider » Fri Aug 08, 2008 4:37 am

can someone tell me what range micrometer i should get for motorcycle and car engine work? can a 0-6" mic. be used for measurements under 1" as effectively as a 0-1" mic. ? i've seen where they sell sets in increments of 1" all the way up to 6"why not just get the 0-6" ?

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Re: micrometers


Post by Revette » Fri Aug 08, 2008 11:51 am

Using a 0-1" mic is a bit easier than trying to manuver a 6" mic with anvil in-place to make it a 1" mic (honestly haven't seen a quality 0-6" mic). It is also easier to keep individual mics in calibration rather than adjustable anvil mics.

Just my opinion after 40 years as a machinist.

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Re: micrometers


Post by indianut » Fri Aug 08, 2008 1:53 pm

Use one like this!
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Re: micrometers


Post by Cotten » Fri Aug 08, 2008 2:54 pm


Revette is correct that when it comes to accuracy, the size of the micrometer should be appropriate for object to me measured.
Accuracy when measuring increments of .001" or less certainly demands a micrometer. Machining operations require such accuracy.

But most assembly work involves hardware that has already passed such inspection, and you find yourself usually only needing a fast comparison, such as sorting thrustwashers, or determining a piston oversize.
You will find a common cheapo 6" dial caliper indispensible for the majority of the down-and-dirty operations, although every respectable tool bin should have (at least) a 1" and a 1 1/2" micrometer for finer measurements as well.


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Re: micrometers


Post by socalrider » Sat Aug 09, 2008 12:38 am

thanks a million for the replys! it was a very big help.

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