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Re: [Shop-talk] Tire Pressure Gauges

To: Jeff Scarbrough <> 2903e8d5c8f:6.0.138,18.0.572,17.0.605.474.0000000 definitions=2020-02-14_11:2020-02-14_02,2020-02-14_11,2020-01-23_02 signatures=0 phishscore=0 bulkscore=0 suspectscore=0 mlxscore=0 clxscore=1015 spamscore=0 malwarescore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2205290100
Subject: Re: [Shop-talk] Tire Pressure Gauges
From: Pat Horne <>
Date: Sun, 29 May 2022 12:24:11 -0500
References: <>
Jeff, I really donâ??t have answers to your questions but I can tell you how I 
do things. 

First, I donâ??t use inflators, I use separate air chucks & pressure gauges. I 
prefer to use tools that are good at one job, rather than so so on multiple 

Second, whatever gauge I buy, I compare its reading to at least 2 others both 
when new & from time to time. If I have access to someone with a high dollar 
gauge Iâ??ll add that reading to the mix from time to time. 


Pat Horne 
We support Habitat for Humanity

On May 29, 2022, at 12:11 PM, Jeff Scarbrough <> wrote:

A couple of tire pressure gauge questions:

I got tired of cheap Horrible Freight tire inflators, so I sprung for a brace 
of Milton S-506 inflators, thinking of they were good enough for the gas 
station of my youth, they ought to be ok now.  One in the garage, one in the 
shop...they don't see a ton of use.  Last week, I was filling bicycle tires in 
the garage with the hotdog compressor, and couldn't get the air up sufficiently 
in the tire.  Finally went to get another electronic gauge quit, and 
my 50 years old Bridgeport Brass gauge needs rebuilding, so I grabbed the.othwr 
Milton inflator.  Turns out, I had missed blowing up the bicycle tires only by 
a miracle of Chinese rubber.  One inflator reads 50 psi while the other one 
reads 90.

So, like when two inmates at the asylum both claim to be Napoleon, at least one 
of them is lying. And at least one will need repairing.

So, two questions:. 

1.  Any suggestions for a good reliable electronic or analog pressure gauge to 
verify/calibrate the inflators?  (I also need one to put in my daughter's car, 
so gloveboxability is a plus).

2.  Anyone ever repair a Milton (or Bridgeport) tire gauge?  Any suggestions?  
The Milton's aren't very old, especially in terms of what we old guys expect 
from our expensive American made tools.

Bonus question:. How might one calibrate a pressure gauge against a primary 
source?  I'm thinking of a water column or something, but 35 psi is 
approximately 80 feet of water.  I'm finding that impractical for home use.
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