Digital calipers

[MICHAEL MORVAN]

Joel,
    As a former machinist with my foot still in the door, I recommend using 
a dial caliper for anything important. Digital calipers/micrometers are 
famous for going out of calibration. Just recently I was making some inserts 
at my father in-laws house using his digital caliper. When it was time to 
use the inserts I measured them with my calipers and they were all 15 
thousandths of an inch to big. By all means, they are good quick reference 
tools but stick to a dial for accuracy. Just my opinion. Mike
Michael A. Morvan
Blackstone Valley Piano
76 Sutton Street
Uxbridge, Ma 01569
(508) 278-9762
keymaestro at verizon.net
www.pianoandorgankeys.com
----- Original Message ----- 
From: "Joel A. Jones" <jajones2 at wisc.edu>
To: "Pianotech List" <pianotech at ptg.org>
Sent: Wednesday, July 12, 2006 11:22 AM
Subject: Digital calipers


> List,
>
> I have been using a digital caliper for about a year and find it
> to be very handy for measuring almost anything.   Tuning pin,
> center pins, wire, depth of holes etc.
>
> Any of you use a digital caliper?   Pros & cons of their accuracy?
>
> My reason for asking is that I found an ad for them in a Harbor Freight
> flyer with a price of $15.99 lot no. 47257.  Flyer also included a coupon 
> for 20% off.
> I am thinking of buying another one to carry.
>
> Thanks for your input.
>
> Joel
> Joel Jones, RPT
> Madison, WI
>
>