MonkeyGreaser
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Torque Wrench Advice: Ranges
- Thread starter MonkeyGreaser
- Start date
Not sure how much a flex head will help you. You don't use a torque wrench for general wrenching, and whenever I needed it, it was an unobstructed situation, but as I said - depends on what you need it for. I assume a flex head adds a little bit more uncertainty in its accuracy.
Typical 1/4" torque wrenches go up to 20-25Nm. The 3/8" covers from 15Nm to 100Nm and the 1/2" from around 80Nm onwards.
I think a 3/8" drive that will measure from 6 to 15Nm won't be very useful in that range, the handle and weight is enough to throw off the measurement.
Typical 1/4" torque wrenches go up to 20-25Nm. The 3/8" covers from 15Nm to 100Nm and the 1/2" from around 80Nm onwards.
I think a 3/8" drive that will measure from 6 to 15Nm won't be very useful in that range, the handle and weight is enough to throw off the measurement.
OP
MonkeyGreaser
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dnschmidt
Well-known member
This has changed dramatically over time and is also true of automotive. At one time the 1/2" 250 ft-lb monster was the king. Then 10mm hex bolts took over the world and now damn near everything is 50 N-m and below. Just finished up my best friends 6.0 Powerstroke diesel (one big assed heavy motor) and I was amazed at how low most of that engine's torque values were. Head studs and harmonic damper bolts were the exceptions requiring the big dog but for most everything else including the turbo <50 N-m was the norm and I used my 1/4" drive torque wrenches a hell of a lot more than my 1/2" drive.
isb cornbinder
Well-known member
This is not true. the torque is measured at the head no matter how the torque is applied.the handle and weight is enough to throw off the measurement.
It may be measured at the head, but if you measure the actual clamping force there would be less consistency. Even how you stand and whether you're pushing or pulling makes a difference in how much you're actually torquing stuff down, the click type torque wrenches aren't a very accurate device especially at low torque values.This is not true. the torque is measured at the head no matter how the torque is applied.
For bikes especially you’ll be applying those bottom range torques with hex bits. The CDI TLA28NM has a great range for that and will be handier than a wrench type tool. You can easily torque in that range w a twist of the wrist. Includes adapter to 1/4” square for sockets when needed.
For 5-25 N•m go 1/4”, it’s well within the capability of that drive size and has better access. Could consider a 9x12 style drive to allow use of changeable heads too:
GEARWRENCH 12 Pc. 1/4" Drive Metric Open End Interchangeable Torque Wrench Set - 89451 https://www.amazon.com/dp/B08WC4QNCY/?tag=atomicindus08-20
I think the PNs you have listed are all Snap-on, for your stated application unless the cost truly doesn’t matter, you could do much better for value with other brands… and if you want to spent that much, get Stahlwille.
For 5-25 N•m go 1/4”, it’s well within the capability of that drive size and has better access. Could consider a 9x12 style drive to allow use of changeable heads too:
GEARWRENCH 12 Pc. 1/4" Drive Metric Open End Interchangeable Torque Wrench Set - 89451 https://www.amazon.com/dp/B08WC4QNCY/?tag=atomicindus08-20
I think the PNs you have listed are all Snap-on, for your stated application unless the cost truly doesn’t matter, you could do much better for value with other brands… and if you want to spent that much, get Stahlwille.
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nadogail
Well-known member
Being an old timer, I am still using my flexible beam torque wrench I bought from Monkey Wards in the 1960’s. At my last employer I submitted it for Calibration and it came back with an acceptance sticker.