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  #1  
Old 11-09-2019, 02:23 PM
Blown Reek Blown Reek is offline
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Question for you precision tool guys

You know that torque wrench that you use religiously? The one that you don't drop, don't store it at anything but 0 Nm, and don't use it as a socket to back off bolts? Assuming that you don't use it day-in-day-out, it should remain calibrated for a long time.

However, what do you do when you have to torque something to spec that's reverse thread? I'm assuming the torque wrenches we buy as consumers are only calibrated in one direction, hence the not using it to back off a bolt, but there's no difference between backing off a bolt and tightening to spec when it's reverse threaded.

Given, I'm only talking about the click-type torque wrench (or beep if it's digital) and not a beam-type torque wrench (I've never used a beam-type).
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  #2  
Old 11-09-2019, 02:35 PM
ultraman6970 ultraman6970 is offline
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I do not use torque wrench... i use the index and thumb technique, and helps a lot that i been doing that like for 40 years
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  #3  
Old 11-09-2019, 02:40 PM
mtechnica mtechnica is offline
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I would use a beam torque wrench in that case. They’re pretty accurate. There could be other clicker or beeper ones that can go backwards but I can’t really say. My good torque wrenches actually don’t have a reversible ratcheting mechanism at all, presumably to keep people from using them as a breaker bar.
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  #4  
Old 11-09-2019, 02:43 PM
rePhil rePhil is offline
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How high do you need it to go? Tekton has this one: https://www.tekton.com/1-4-inch-driv...rench-trq21101

Lowe's Cobalt has this one: https://www.lowes.com/pd/Kobalt-3-8-...-lb/1000259427

Last edited by rePhil; 11-09-2019 at 02:53 PM.
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  #5  
Old 11-09-2019, 02:51 PM
Blown Reek Blown Reek is offline
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I'd prefer to have two- a 1/4" drive for up to 5Nm and a 3/8" drive for up to about 50Nm. Right now I'm working with a PRO 1/4" and a Husky 3/8" which I've had forever. Strangely, the only cheap crap I have in my tools are those two torque wrenches.
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  #6  
Old 11-09-2019, 03:05 PM
ryker ryker is offline
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My CDI torque wrench specifies accuracy in clockwise and counter-clockwise directions. Not the same tolerances but pretty close.
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  #7  
Old 11-09-2019, 03:08 PM
Dave Dave is offline
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What makes you think it makes any difference? As others mentioned, a beam type works both ways. That's what I use for BBs.
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  #8  
Old 11-09-2019, 03:28 PM
scoobydrew scoobydrew is offline
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Some clicking torque wrenches allow operation in both directions (CW & CCW) and even specify the accuracy in either direction. In those cases, the CCW direction might sometimes be less accurate.
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  #9  
Old 11-09-2019, 05:07 PM
fmradio516 fmradio516 is online now
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Quote:
Originally Posted by scoobydrew View Post
Some clicking torque wrenches allow operation in both directions (CW & CCW) and even specify the accuracy in either direction. In those cases, the CCW direction might sometimes be less accurate.
Mine have that option(clicky one) but is it safe to use it to tighten in that direct? It wont damage anything right? just less accurate?
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  #10  
Old 11-09-2019, 07:58 PM
Nomadmax Nomadmax is offline
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My torque wrenches (click type Snap Ons) are checked for calibration once a year by a place that inspects A&P tools. Each one is checked in both directions and a report is provided on the performance.
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  #11  
Old 11-10-2019, 09:32 AM
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oldpotatoe oldpotatoe is offline
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Quote:
Originally Posted by ultraman6970 View Post
I do not use torque wrench... i use the index and thumb technique, and helps a lot that i been doing that like for 40 years
Always fun to see these posts and sure, your stuff, do whatever you want.
“Tighten till that peanut butter wrench makes a mark on your hand”...

With today’s Uber light ‘stuff’, torque wrenches are cheap, accurate and will save you $ in the long run....first gen carbon Modolo hbar, red one, ‘6 bend’’, 26mm, tighten face plate and..........Crack!! Those bars are expensive, even at wholesale as I threw this one away, grabbed another, for the customer....
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  #12  
Old 11-10-2019, 10:08 AM
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false_Aest false_Aest is offline
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Snap On's torque wrench (metric 20-100nm ratchet) works in both directions. The clicker is built into the head not the ratchet. 3/8" is about $370

1/4" (5-25nm) is $340.
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Last edited by false_Aest; 11-10-2019 at 10:12 AM.
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  #13  
Old 11-10-2019, 11:25 AM
wgp wgp is offline
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Quote:
Originally Posted by oldpotatoe View Post
“Tighten till that peanut butter wrench makes a mark on your hand”...
Ha - I remember those days ...
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  #14  
Old 11-10-2019, 12:02 PM
amerikaner amerikaner is offline
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Quote:
Originally Posted by rePhil View Post
How high do you need it to go? Tekton has this one: https://www.tekton.com/1-4-inch-driv...rench-trq21101

Lowe's Cobalt has this one: https://www.lowes.com/pd/Kobalt-3-8-...-lb/1000259427
The Tekton and Kobalts are pretty good ...been using for my cars and bikes. Probably due for a recalibration, but for the price, might be cheaper to just buy a new one.

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