[DeTomaso] selecting torque wrenches?

[Jim Hendrickson]

My Proto is 1/2" drive, 5 - 150 ft.lb., micrometer adjust, clicking type. It
is older than my Pantera. I had a friend in the calibration lab check it
about 20 years ago. It was within 5 ft.lb. of their check gauge. 

For tight places and lower torque settings, I have a 3/8 drive, 5 - 80 ft.
lb. and a 3/8 drive, 5 - 300 in. lb.(that's 25 ft. lb. to you). These are
newer so they are also marked in Newton/meters.

I believe that repeatability is more important than absolute accuracy. If I
tighten things 10% over, so what as long as they are all the same?



-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of Ken Green
Sent: Wednesday, November 28, 2007 11:57 AM
To: detomaso at realbig.com
Subject: [DeTomaso] selecting torque wrenches?

I'm looking at torque wrenches have some questions.
   
  1)  I know that in several occasions I've encountered pretty low torque
specs, but I can't remember how low.  I've seen 1/4 inch wrenches with
difference ranges.  I think a 30 to 200 inch pound sounds right.  Is there
any need to go lower then 30 in lbs?
   
  2)  There are a lot of digital torque wrenches out there, The advantage I
can see is that they accurately display the torque as you tighten a
fastener, which may be useful, and I found one reference which said they
hold their calibration better.  They do however look like you could damage
them a lot easier than a mechanical wrench.  Any comments on them?
   
  3)  It looks like Snap On is the most expensive, then comes Matco and Mac.
Are there other good wrenches that don't come with an expensive name?
   
  thanks
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