Looking at the Park Tools beam 0-14Nm torque wrench.
Is the anything as/more acurate for less money? Got loads of bits for drills so would need a 3/4 adapter to use them.
Have a Lifeline one. Not had any nuts drop out (:P) since I've been using it. Nor snapped any bolts.
Ah, that's a lie - I did snap a bolt, but that was cos it was reverse thread 😀
Norbar. They only make torque tools, which means they know what they're doing.
Norbar is too expensive. Looking for something cheaper than the Park Tools wrench.
You might as well not bother then. A cheap torque wrench is about as reliable as working it out / guessing by feel. If you genuinely want to accurately know how tight something is, buy a decent one.
A cheap torque wrench is about as reliable as working it out / guessing by feel.
Do you have a reference for that?
A cheap torque wrench is about as reliable as working it out / guessing by feel.
Do you have a reference for that?
There is a reason we only buy top-end torque tools and get them calibrated every year in Industry..
I'll second the Lifeline one. Does the job and I've not snapped any bolts yet and I'm hamfisted.
Lifeline of Brand-X - probably the same - has done me fine, nothing has fallen off or twisted and I haven't snapped, sheared or crushed anything either.
There is a reason we only buy top-end torque tools and get them calibrated every year in Industry..
ISO9001 or whatever the current equivalent is? Insurance essentially, so if there is an incident that has happened as a result of a fixing snapping, shearing, failing or whatever, the QA documents will be able to verify that on the given day it was installed the piece of equipment used was covered by it's relevant calibration certificate and the person undertaking the installation was trained and competent in it's use
Lifeline also, very good for the price. Though I've never had a problem guessing apart from one rotor bolt which was probably iffy anyway.
ISO9001 or whatever the current equivalent is?
And not wanting a £200k compressor fitted to a submarine to fail whilst its underwater.
I'd make a wild guess that the OP isn't going to be fitting any compressors, £200K or otherwise, to any submarines.
I’d make a wild guess that the OP isn’t going to be fitting any compressors, £200K or otherwise, to any submarines.
It's just for some Carbon bits that require 4Nm and 6Nm.
Which I'd say are even more important to get right.
if stored carefully should not go out of calibration.
🤨
Regarding calibration. Would a beam torque wrench need calibrating too?
is inexpensive and if stored carefully should not go out of calibration.
Calibration is probably not the right word, my choice of words shows that I an not an engineer
Well, to assume "makes an 'ass' of 'u' and 'me'" as a co-worker used to tell new recruits.
We probably need clarity of this point from OP.
OP, do you indeed intend to fit a compressor to a submarine? And what would be the approximate value of that compressor?
Edit: whoops, OP did clarify that while I was typing. Carry on....
😀
I wonder if they require a higher torc than 14Nm 🤔
It’s just for some Carbon bits that require 4Nm and 6Nm.
Tight enough and a little bit tighter then
I'm usually fine with how tight things should be, but I about to treat myself to some expensive carbon bits and don't want to overtighten anything, and also don't want to undertighten causing things to slip and score my new expensive bits. The Park Tools one is at the top of my list but if the cheaper ones from Lifeline as recommended above are just as good I'll get one of them.
reminded me of this vid, when I was pondering attempting a job on my car.
Thought the Lifeline might not be up to it
This thread has a lot of tension building 😜
smallspinsized
Regarding calibration. Would a beam torque wrench need calibrating too?
Yes
A few points here:
Max torque is just that rather than a target that must be hit. I've got components marked 5Nm that haven't budged at 3Nm; there's no need to go to the max limit IME of bikes.
Tighten a component until it stops moving, which isn't too difficult with the majority e.g. handlebars, stem and seat post because you can easily exert a force as if holding, sitting, etc.
What is the correct torque? Is it on a dry fastener, a greased fastener or a threadlock-coated fastener? See the paragraph above 🙂
I made the mistake of buying a popular brand of factory-certificated torque wrench. I'm lucky enough to be able to chuck mine in with a workshop who get everything tested twice per year. For £12 I had it tested annually with adjustment for another £10. By year two I'd paid more for testing and adjustment than for the torque wrench.
I replaced it with a Norbar at not quite three times the price. It's been accurate year after year, despite having to leave it for 18 months during lockdown.
TLDR: Unless you go to max torque for a specific reason then I'd use a more practical test
If you go to max torque then an untested torque wrench is a risk
If you need a torque wrench then it isn't the thing to save £50 on
One advantage of the beam is that it's reversible, which could be useful depending on your frame pivot bolts. A Norbar or similar click-type that's reversible will be quite some cash.
reckon you can get away with doing those low torque bolts by feel. I got one of those digital ones with a range something like 6 - 22Nm for doing the 7nm bolts - seat post was still slipping with it at specified 7Nm, tightened it by hand til it stopped slipping, job done. Don't bother with the dig torque now. Use a standard 1/2" TW for the 40Nm cap on the cassette. Get a half decent brand and it should be accurate enough, I've checked it against my 1/2" digital torque adaptor and its pretty much spot on across the range, except perhaps the bottom 5 which are maybe +/-1Nm out
My other TW is a 3/8" 'calibrated' Sealey, I managed to strip a car sump plug with that, and it was accurate as I checked against a new digital one, so going by feel is a good idea with aluminium
Probikekit are doing those little Feedback Sports torque wrenches for 45 notes, so to contradict myself I've just ordered one as a load of my frame pivot caps are 4Nm