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Digital Torque wrenches #4580395
11/20/17 07:07 PM
11/20/17 07:07 PM
Joined: Apr 2008
Posts: 1,833
IL
Ndx Offline OP
Ndx  Offline OP
Joined: Apr 2008
Posts: 1,833
IL
Hi Guys,

Any recommendation on Digital Torquewrench?
3/8

Something that will be accurate at

37ft lb
19 ft lb


So 15-40 ftlb great accuracy ...

Thank you

Re: Digital Torque wrenches [Re: Ndx] #4580410
11/20/17 07:15 PM
11/20/17 07:15 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
There's no point in getting a digital torque wrench unless you need to set angles for Torque-To-Yield fasteners. And if that's the case, the only digital torque wrench I'd recommend is $nap-on.

Re: Digital Torque wrenches [Re: Ndx] #4580431
11/20/17 07:42 PM
11/20/17 07:42 PM
Joined: Mar 2017
Posts: 139
northwest pa
justintendo Offline
justintendo  Offline
Joined: Mar 2017
Posts: 139
northwest pa
cdi...who make a good chunk of all snap on wrenches.
i will say i like split beam the best...digital is not needed.

Last edited by justintendo; 11/20/17 07:53 PM.

2013 escape 2.0 awd mobil 1 10w30ep
2008 fusion 2.3 mtx redline 0w20
1996 f150 4.9 2wd mtx mobil 1 10w30hm
1999 kaw zrx 1100 redline 10w40
many husqvarnas
Re: Digital Torque wrenches [Re: Ndx] #4580436
11/20/17 07:47 PM
11/20/17 07:47 PM
Joined: Mar 2013
Posts: 5,126
The Midwest
skyactiv Offline
skyactiv  Offline
Joined: Mar 2013
Posts: 5,126
The Midwest
I'm a semi mechanic by trade.
I have the older version of this in my toolbox at home: http://www.sears.com/craftsman-micro-clicker-torque-wrench-3-8inch-drive/p-00931424000P


Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual
Wanted: 2019 Ford Ranger
Re: Digital Torque wrenches [Re: Ndx] #4580491
11/20/17 08:38 PM
11/20/17 08:38 PM
Joined: Jun 2002
Posts: 6,480
MI
doitmyself Offline
doitmyself  Offline
Joined: Jun 2002
Posts: 6,480
MI
Originally Posted By: Ndx
Hi Guys,

So 15-40 ftlb great accuracy ...Thank you


I don't think that an electronic digital torque wrench exists in that range. 1/4" wrenches only go up to about 24 ft. lbs. max. and 3/8" wrenches all seem to go up to 100 ft. lbs., making them inaccurate below 20 ft. lbs. (20% of scale).

You will have to buy two digital wrenches to cover that range.

A 75-80 ft. lb. micrometer torque wrench would fit your criteria. Here's an example of a good one: https://www.amazon.com/CDI-752MFRMH-Torque-8-Inch-Micro-Adjustable/dp/B002L9Z27E or https://www.protorquetools.com/cdi-3-8-d...nch-dual-scale/

Chinese and Taiwan models are available also. Hope this helps.

Re: Digital Torque wrenches [Re: Ndx] #4580531
11/20/17 09:09 PM
11/20/17 09:09 PM
Joined: Jun 2012
Posts: 704
Reno, NV
redbone3 Offline
redbone3  Offline
Joined: Jun 2012
Posts: 704
Reno, NV
https://www.protorquetools.com/3-8-dr-10...racy-1002cf3ha/ The 20 to 100% rule doesn't apply to digital torque wrenches. This one would do the trick. But I question the need for such accuracy.


2014 Passat Wolfsburg, 1995 Miata.
Re: Digital Torque wrenches [Re: Ndx] #4580544
11/20/17 09:18 PM
11/20/17 09:18 PM
Joined: Apr 2008
Posts: 1,833
IL
Ndx Offline OP
Ndx  Offline OP
Joined: Apr 2008
Posts: 1,833
IL
Thx guys ...

Accuracy for piece of mind...


One more question beam style vs clicker

Any opinions on this

https://www.cpooutlets.com/platinum-tools-c2fr100f-3-8-in--drive-100-ft-lbs--split-beam-click-type-torque-wrench/prenc2fr100f,default,pd.html?cgid=automotive-hand-tools-torque-wrenches

Re: Digital Torque wrenches [Re: redbone3] #4580545
11/20/17 09:22 PM
11/20/17 09:22 PM
Joined: Jun 2002
Posts: 6,480
MI
doitmyself Offline
doitmyself  Offline
Joined: Jun 2002
Posts: 6,480
MI
Originally Posted By: redbone3
The 20 to 100% rule doesn't apply to digital torque wrenches.


It does on the good ones: http://public.snapon.com/a_prodannouncements_us/ATECH1FR240B_NPA.pdf

Seems like it applies to the lesser ones also: http://www.gearwrench.com/gearwrench-85076-3-8-electronic-torque-wrench-7-1-99-6-ft-lbs.html

Re: Digital Torque wrenches [Re: Ndx] #4580553
11/20/17 09:30 PM
11/20/17 09:30 PM
Joined: Jun 2002
Posts: 6,480
MI
doitmyself Offline
doitmyself  Offline
Joined: Jun 2002
Posts: 6,480
MI
NDX,

When talking about torque accuracy, remember that the torque process can easily be off by +/- 25% due to many variables. So, the accuracy difference of a torque wrench of 2% vs. 4% is a moot point.

The Precision Instruments torque wrench you link to is very highly regarded as an excellent U.S. made torque wrench. Check out reviews at the Garage Journal forum. It doesn't work in the reverse direction, but that is a very rare need. This wrench used to be supplied to Snap-On, with the only difference being a Snap-on ratchet head.

Re: Digital Torque wrenches [Re: Ndx] #4580573
11/20/17 09:46 PM
11/20/17 09:46 PM
Joined: Apr 2008
Posts: 1,833
IL
Ndx Offline OP
Ndx  Offline OP
Joined: Apr 2008
Posts: 1,833
IL
Thank you sir ...

How to understand the 20% rule ?

So lowest is 20 ft lb .... so it will be accurate from 24 ft lb ?

20 + 20% = 24 ?

Thank you

Re: Digital Torque wrenches [Re: doitmyself] #4580574
11/20/17 09:46 PM
11/20/17 09:46 PM
Joined: Jun 2012
Posts: 704
Reno, NV
redbone3 Offline
redbone3  Offline
Joined: Jun 2012
Posts: 704
Reno, NV
Originally Posted By: doitmyself
Originally Posted By: redbone3
The 20 to 100% rule doesn't apply to digital torque wrenches.


It does on the good ones: http://public.snapon.com/a_prodannouncements_us/ATECH1FR240B_NPA.pdf

Seems like it applies to the lesser ones also: http://www.gearwrench.com/gearwrench-85076-3-8-electronic-torque-wrench-7-1-99-6-ft-lbs.html


Most of the digital ones have a derated accuracy from 10 to 20% of range: http://www.cditorque.com/manuals2010/CDI_Manual_Computorq3.pdf


2014 Passat Wolfsburg, 1995 Miata.
Re: Digital Torque wrenches [Re: redbone3] #4581305
11/21/17 06:50 PM
11/21/17 06:50 PM
Joined: Jun 2002
Posts: 6,480
MI
doitmyself Offline
doitmyself  Offline
Joined: Jun 2002
Posts: 6,480
MI
Originally Posted By: redbone3
Most of the digital ones have a derated accuracy from 10 to 20% of range: http://www.cditorque.com/manuals2010/CDI_Manual_Computorq3.pdf


You are right! I stand corrected. Thank you.

Re: Digital Torque wrenches [Re: Ndx] #4581396
11/21/17 08:13 PM
11/21/17 08:13 PM
Joined: Feb 2003
Posts: 7,846
Jupiter, Florida
Cujet Offline
Cujet  Offline
Joined: Feb 2003
Posts: 7,846
Jupiter, Florida
I just used the Snap On digital torque wrench today. Loved it. However, I will say that an old school dial torque wrench is, quite possibly, slightly easier to use quickly. As pre setting the torque number takes time. When one has to step up torque multiple times, on multiple sized fasteners, stopping to reset takes time.


People who count on their fingers should maintain a discreet silence.
Re: Digital Torque wrenches [Re: Ndx] #4581671
11/22/17 07:50 AM
11/22/17 07:50 AM
Joined: Jun 2002
Posts: 6,480
MI
doitmyself Offline
doitmyself  Offline
Joined: Jun 2002
Posts: 6,480
MI
Originally Posted By: Ndx
How to understand the 20% rule ?

Here's Precision Instruments accuracy statement: "Accurate within 4% of reading from 20% of full scale to full scale." On a 100 ft. lb. wrench, P.I.'s 4% accuracy would apply between 20 ft. lbs. and 100 ft. lbs.. A 250 ft. lb. wrench should have the stated accuracy down to the 50 ft. lb. range (20% of 250). Using a torque wrench below the 20% of full scale might be inaccurate, even if the wrench has a scale that goes down to zero. This is a basic guideline for purchasing and using the correctly ranged wrench.

redbone3 educated us that electronic digital wrenches give accuracy ratings down to 10% of full scale, with only a slight loss of accuracy in that range (10-20%).


Also, FYI, if you are intent on a digital model, I was in Home Depot yesterday and noticed that their Husky 3/8 model is an 80 ft. lb. wrench, meeting your original criteria. Lifetime warranty, which is very unusual for torque wrenches. https://www.homedepot.com/p/Husky-5-80-f...TWDIG/206096361

Re: Digital Torque wrenches [Re: Ndx] #4582952
11/23/17 01:28 PM
11/23/17 01:28 PM
Joined: Jul 2007
Posts: 342
hawaii
ms21043 Offline
ms21043  Offline
Joined: Jul 2007
Posts: 342
hawaii
I have a Snap On 3/8 drive digital, I would never buy another. They drain the batteries when they're turned off. It wasn't just mine, we have several at work and they all do the same thing, you need to install the batteries before you use the thing and remove them when you're done. Also, you need to be careful with chemicals near the plastic display lens and handle. I do like that you can switch between ft lbs, inch lbs and newton meters, that you can see the torque as you come up on it, that they vibrate and beep when you reach the set torque and hold the actual torque you reached on the display momementarily.

Last edited by ms21043; 11/23/17 01:31 PM.

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