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Doublereed Archive - Posting 000077.txt from 2008/02

From: "David Crispin / Crispin's Creations" <crispinscreations@-----.net>
Subj: Re: [DR-L] Micrometer question
Date: Thu, 14 Feb 2008 12:21:37 -0500

David,

What kind of micrometers are they?

Caliper type with a sliding jaw?
Dial indicator?
Those little brass jobs with the screw doo-hicky?

David Crispin

----- Original Message -----
From: "David Lurie" <klingsor@-----.com>
To: <doublereed@-----.org>
Sent: Thursday, February 14, 2008 10:36 AM
Subject: [DR-L] Micrometer question

>I own 2 different micrometers. When I measure gouged cane with the
> expensive Rieger, it shows a thickness of 0.6 mm. When I measure with
> the other one (a cheapie gift that a friend gave me) I get 0.50.
> Other thicknesses show a similar difference of about 0.10mm.
>
> So the question I have is which one is right? Also, how can I tell
> the accuracy of either? A friend suggested using feeler gauges.
>
> Any ideas, anyone?
>
> David
>

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