Torque Wrench - BMW Luxury Touring Community
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post #1 of 25 Old Jan 1st, 2020, 1:31 am Thread Starter
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Lightbulb Torque Wrench

What type of torque wrench are you using. I noticed a lot of 4nm torque settings so I guess a digital is the way to go, but what brand?

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post #2 of 25 Old Jan 1st, 2020, 2:14 am
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Re: Torque Wrench

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What type of torque wrench are you using. I noticed a lot of 4nm torque settings so I guess a digital is the way to go, but what brand?
I bought a digital torque wrench from Lowe's for about $170. It does several units of measure.

As far as trying to torque to 4Nm, well that's basically hand-tight.
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post #3 of 25 Old Jan 1st, 2020, 7:01 am
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Re: Torque Wrench

Simple truth of the matter is you need more then one torque wrench I have three. Two 3/8" in different ranges and a 1/2". I see no way to cover the ranges with just one torque wrench.

One is NEVER supposed to use a torque wrench at the very top or bottom of it's scale as they are less accurate in those ranges. At least that was what I was always told as I learned to wrench.
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post #4 of 25 Old Jan 1st, 2020, 7:47 am
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Re: Torque Wrench

If you were to cover any/all torque requirements on the motorcycle, it usually involves 3 or more different units. For 4Nm (35.4"lbs.) a small 1/4" drive type would be optimal probably in the range of 0-9 Nm. My personal preference in order for ease of use is (1)click type, (2)electronic digital, (3)dial type, (4)bending beam. For accuracy, (1)electronic digital, (2)bending beam, (3)dial type, (4)click type. For longevity, (1)bending beam, (2)dial type, (3)electronic digital, (4)click type.

Electronic digital are generally extremely accurate but with my older eyes and ears, not very practical. Bending beam and dial type have very good accuracy also but again they should be viewed straight on. Click type are my favorite as you just set and click but accuracy is not as good as the first 3 and usually require more maintenance. Two of my 3 torque wrenches are click type. All type torque wrenches need to be checked periodically for accuracy. Normally calibration is done about once a year depending on amount of usage. I check mine more often because I have access to a torque wrench tester......

For more info about torque wrench accuracy: http://www.bmwlt.com/forums/bike-tal...tml#post148387

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post #5 of 25 Old Jan 1st, 2020, 11:06 am
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Re: Torque Wrench

This is the one I bought specifically for use on my motorcycle. I hate converting values so I bought a metric unit. Though I agree about not going to to the tippy top or bottom of the range, I use this one for anything with a torque value above 15 N-m up to the rear wheel lugs.

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post #6 of 25 Old Jan 1st, 2020, 12:02 pm
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Re: Torque Wrench

At work they said torque wrenches should be used between 20-80 percent of their range. I don't do a lot of wrenching so a single 60 NM 3/8" drive wrench suits my needs.

Don't forget to unwind the click-type wrenches before putting them away.

Update: the one Pappy53 linked to is the same one I have. The label on the case says "CDI A Snap-On company" so I figured it was good. I had a torque wrench tester at work and checked it, and it was indeed accurate (standard tolerance is ±5%). I checked another one I had it and it was WAY off, I'd been overtightening things significantly.

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post #7 of 25 Old Jan 1st, 2020, 1:10 pm
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Re: Torque Wrench

I have this Wera that has been top notch for me. I doesn't look like it is currently available on Amazon but might be worth hunting one down:
https://www.amazon.com/Wera-05075393.../dp/B00BT0F7JE

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post #8 of 25 Old Jan 2nd, 2020, 8:21 am
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Re: Torque Wrench

I agree that you're unlikely to find a one size fits all solution as far as torque wrenches are concerned. Personally, I've got three, two Precision Instruments split-beams (3/8" & 1/2") and a digital CDI 1/4" for smaller jobs. The CDI has an audible alarm and yellow, green & red lighting to indicate proper torque so you don't have to read the gauge directly to use it.

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post #9 of 25 Old Jan 2nd, 2020, 9:41 am
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Re: Torque Wrench

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Originally Posted by prz42 View Post
What type of torque wrench are you using. I noticed a lot of 4nm torque settings so I guess a digital is the way to go, but what brand?
Consider a bicycle shop. There are lots of very low torque fasteners on bicycles and shops often have suitable torque wrenches available.

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post #10 of 25 Old Jan 2nd, 2020, 8:00 pm Thread Starter
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Re: Torque Wrench

I am thinking of something like "DLC Diamond Golden 1/4" 1-25Nm / 8.9-221 In-lb Reversible Gauge Torque Wrench"
I found it on a bicycle supply company. It is made in Taiwan so it should be better than China brand but don't know a lot about it.

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post #11 of 25 Old Jan 3rd, 2020, 4:46 am
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Re: Torque Wrench

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Originally Posted by prz42 View Post
I am thinking of something like "DLC Diamond Golden 1/4" 1-25Nm / 8.9-221 In-lb Reversible Gauge Torque Wrench"
I found it on a bicycle supply company. It is made in Taiwan so it should be better than China brand but don't know a lot about it.
That is still a bit high range for what you want. If you are looking for 4Nm, you could really do with a Torque wrench that has a max range of about 10Nm so that you are in the middle of the accurate range, not at the bottom end of it's range.

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post #12 of 25 Old Jan 3rd, 2020, 8:34 am
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Re: Torque Wrench

Funny how we sometimes tend to “over-think” and complicate certain things. I have been out of the business for over a decade now but in one of my (too many) careers, I was tasked in supplying tooling to major industrial manufacturing operations. I have read this topic and have no quarrel with any one particular comment. Except to say that we sometimes get so hung up on specifications that, if we aren’t careful, we allow it to paralyze us into inaction and delay progress.

In my past, I have supplied everything from a hand held “beam” type torque wrench to very technical PLC electronic controlled assembly torque systems on aerospace, gas turbine, commercial vehicle, and automobile assembly operations. Some of these applications so critical that the fasteners are not only torqued, but data kept and stored.

However, for my own “backyard” applications...I keep and use three torque wrenches. One “old-school” Craftsman beam type 1/2” drive beam wrench in ft. lbs., and two micrometer(dial/click) wrenches, a small one for the inch lbs. And a larger one for ft. lbs. All have double scales to cover the metric specs.

We can get hung up in not only the specific torque numbers, including torque angles... but for me...I have had good results in keeping things in order of assembly and following a few simple rules. One, is to keep bolts, screws, & nuts paired with their original positions. (Sometimes difficult on used equipment serviced by others) I don’t take something apart and throw all the fasteners in a can of solvent and sort them out later. I also clean the parts. On certain critical applications, (head bolts, rod caps, etc.) I will chase the threads & blow out the debris. Tiny pieces of gasket sealer, etc., can cause a false torque.

Another thing that is important is “practice.” If you are tasked with setting a torque reading you are unfamiliar with, take the time to make a practice piece, and develop a “feel” for the torque. I’ve done that and even broken a few bolts solely to gain an insight “feel” for how much is too much. I still remember (Air Force, 1966) the chewing out I got for over torquing and breaking a bolt in an expensive light weight alloy flywheel.

Several years ago, I broke a bolt on one of my vintage car engines. Rather than take the time to investigate the issue, I decided to “tweak” the tightness of a bolt. (Not using a torque wrench.) Instead of a tweak...it was a snap! Dumb move on my part. Turned out that the bolt was a tiny bit too long bottomed out into a blind hole. If I had taken the time to do it right, I could have saved myself days of extra work. (Sorry for the long post. Typing comes easy for me and combined with morning coffee and “Topic inspiration”…) So...get a decent wrench(s)...practice, and happy torquing!

One added note Re. Digital tools. I avoid them because I use them so seldom that I don't trust the batteries. My tools are kept in unheated out buildings. The heat cycles, possible corrosion, and infrequent use has not been good for the few digital tools I have had.
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post #13 of 25 Old Jan 3rd, 2020, 4:04 pm
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Re: Torque Wrench

A bending beam wrench allows you to hold a torque for a while which is sometimes important. And they are less prone to drift IF they return to zero between readings.
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post #14 of 25 Old Jan 6th, 2020, 5:00 am
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Re: Torque Wrench

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A bending beam wrench allows you to hold a torque for a while which is sometimes important. And they are less prone to drift IF they return to zero between readings.

Not keen on these torque wrenches for very low torque figures. Otherwise, I love them.

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post #15 of 25 Old Jan 6th, 2020, 9:08 pm
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Re: Torque Wrench

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What type of torque wrench are you using. I noticed a lot of 4nm torque settings so I guess a digital is the way to go, but what brand?

I use a Neiko 1/4 inch torque wrench (2-24nm) for for the small values


YMMV

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post #16 of 25 Old Yesterday, 10:04 am
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Re: Torque Wrench

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Not keen on these torque wrenches for very low torque figures. Otherwise, I love them.
I don't know my dentist uses one for the screw in my implants and torques it to 30 Ncm which is 0.30 Nm. That is pretty small and so is the torque wrench.
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post #17 of 25 Old Yesterday, 12:33 pm
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Re: Torque Wrench

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I don't know my dentist uses one for the screw in my implants and torques it to 30 Ncm which is 0.30 Nm. That is pretty small and so is the torque wrench.
Can't argue with you on that!

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post #18 of 25 Old Yesterday, 6:00 pm
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Re: Torque Wrench

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I don't know my dentist uses one for the screw in my implants and torques it to 30 Ncm which is 0.30 Nm. That is pretty small and so is the torque wrench.
This is my Dentist and his torque wrench!
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post #19 of 25 Old Yesterday, 7:25 pm Thread Starter
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Red face Re: Torque Wrench

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I use a Neiko 1/4 inch torque wrench (2-24nm) for for the small values
YMMV
I just purchased TEKTON 1/4" Drive Dual-Direction Click Torque Wrench (10-150 In.-Lb.) TRQ21101
Reversible, finely geared 72-tooth ratchet head measures torque in clockwise and counterclockwise directions for regular and reverse threaded fasteners
Ships Pre-Calibrated to an accuracy of +/- 4% (Clockwise) and +/- 6% (counterclockwise)

Specifications:
Range - in.-lb.: 10-150 in.-lb.
Range - Nm: 1.1-16.9 Nm
Increment: 1 in.-lb. (0.113 Nm)
Accuracy: ± 4 percent
Length: 8-13/16 inch
Ratchet: 72 tooth
Country of Origin: Taiwan

Thanks for all the information
Hope this is a good wrench

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post #20 of 25 Old Yesterday, 7:45 pm
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Re: Torque Wrench

I purchased 3 different range Snap-On wrenches from Fleabay, and then took them to a local certification shop and verified they were accurate.
15 years later, one of them gave up the ghost and was replaced with a new wrench from the certification guys.
It's very nice to have and use good quality tools.
I'm not a professional and do not need certification certificates, so the shop checks them for accuracy for very little cost.
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Re: Torque Wrench

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I don't know my dentist uses one for the screw in my implants and torques it to 30 Ncm which is 0.30 Nm. That is pretty small and so is the torque wrench.
GOOD GRIEF!!! Now look what you've done! I read your post this morning and later this afternoon, during my dental appointment, I thought to ask my dentist about dental torque wrenches. I asked her how much they cost? She said she wasn't sure but the last she bought, the figure of around $800 came to mind.

Later this evening...I went to eBay and typed in the search..."Dental Torque Wrench." MY O MY...over 3 thousand offerings popped up! Quite a booming business in micro torque tools! (Who knew?)


I'll slink back to lurk mode now.

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post #22 of 25 Old Today, 6:12 am
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Re: Torque Wrench

Quote:
Originally Posted by prz42 View Post
I just purchased TEKTON 1/4" Drive Dual-Direction Click Torque Wrench (10-150 In.-Lb.) TRQ21101
Reversible, finely geared 72-tooth ratchet head measures torque in clockwise and counterclockwise directions for regular and reverse threaded fasteners
Ships Pre-Calibrated to an accuracy of +/- 4% (Clockwise) and +/- 6% (counterclockwise)

Specifications:
Range - in.-lb.: 10-150 in.-lb.
Range - Nm: 1.1-16.9 Nm
Increment: 1 in.-lb. (0.113 Nm)
Accuracy: ± 4 percent
Length: 8-13/16 inch
Ratchet: 72 tooth
Country of Origin: Taiwan

Thanks for all the information
Hope this is a good wrench

I also bought a Tekton torque wrench (10-80 ft.lb.) to replace one of my Digital electronic units that took a crap. I was apprehensive toward the accuracy vs. cost factor but was pleasantly surprised when I tested it on my torque tester. It came in well under the 4%/6% rating with very good repeatability through 20% to 100% of range. Can't say anything about longevity as I haven't had it that long or used it much yet. If it does sh!t-the-bed before long at least I wouldn't have wasted nearly as much money as with the short lived Electronic digital one!.......

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post #23 of 25 Old Today, 10:30 am
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Re: Torque Wrench

I recently picked up a small, screwdriver style torque wrench. It's a clicker. Primarily, it's handy for the small fasteners used in gunsmithing.
I suspect at it's higher range it could be used for some of the smaller fasteners on my old Airhead.
Very handy little tool.
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Re: Torque Wrench

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Originally Posted by ebiss9 View Post
. Can't say anything about longevity as I haven't had it that long or used it much yet. If it does sh!t-the-bed before long at least I wouldn't have wasted nearly as much money as with the short lived Electronic digital one!.......
No need to worry about that.

Teckton tools have a lifetime, no question asked warranty .


My Teckton torque wrench lost one of the two head screws. I sent them a picture and they sent me a new wrench right away.

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post #25 of 25 Old Today, 9:50 pm
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Re: Torque Wrench

I have cheap Pittsburg Tools torque wrenches from Harbor Freight. I accept that the accuracy may not be spot on but have used them on plenty of vehicles with no issues including the water pump on my wife's Subaru torqued to 12nm that used a copper gasket. No leaks or issues. Had to convert nm to inch lbs. They get the job done.

https://www.harborfreight.com/14-in-...nch-63881.html

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