super precise torque wrench 3/8
- Thread starter Ndx
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"super precise" and "torque wrench" is an oxymoron. No torque wrench is going to provide more than roughly 20% variance in fastener tighteness. If you need to tighten something to a "super-precise" spec, you need something besides a friction torque wrench.
This is super-precise: Bolt Tension Meter.
Otherwise, if you need real precision, you should inspect other methods than friction torque, like bolt elongation or even angle torque if the specs are available. What is it that you're tightening that you need a high level of precision? Because friction torque is, by nature, imprecise.
This is super-precise: Bolt Tension Meter.
Otherwise, if you need real precision, you should inspect other methods than friction torque, like bolt elongation or even angle torque if the specs are available. What is it that you're tightening that you need a high level of precision? Because friction torque is, by nature, imprecise.
What range are you looking for?
You'll probably need something for 50-250 inch lbs, then another one for 5-75 ft lbs.
The CDI ones are great quality and inexpensive.
You'll probably need something for 50-250 inch lbs, then another one for 5-75 ft lbs.
The CDI ones are great quality and inexpensive.
I have had great experience with NAPA torque wrenches.
I have the 3/8 drive and 1/2 drive and I can rely on both.
I was planning on picking up their 1/4 drive at some point, but I even trust the 3/8 enough for ~20 ft lbs for installing spark plugs.
I'd definately go check out NAPA for their 1/4 drive in/lb torque wrench, and at least they stand behind what they sell a bit.
I have the 3/8 drive and 1/2 drive and I can rely on both.
I was planning on picking up their 1/4 drive at some point, but I even trust the 3/8 enough for ~20 ft lbs for installing spark plugs.
I'd definately go check out NAPA for their 1/4 drive in/lb torque wrench, and at least they stand behind what they sell a bit.
JOD is right on the money. You'll need to provide more detailed requirements or at least a definition of your terms.
Are we talking precision or accuracy? These are completely two different things. You can have a precise torque wrench because precision is repeatable results. Accuracy is how close you are to the actual value. Being precisely accurate is the best of the best.
You probably need something that reads from 0-25 ft-lbs. There's equipment out there that does that. I'm having issues because my beam wrench is hard to read for anything light on the scale like cap nuts or spark plugs, and my clicker starts at 10 ft-lbs, so I'm pretty sure it's not that accurate near the bottom.
Maybe a dial type?
This is is for really low torque settings. They have one that reads out for 0-25 ft-lbs.
Maybe a dial type?
This is is for really low torque settings. They have one that reads out for 0-25 ft-lbs.
Originally Posted By: Vikas
he is talking about "screws", 0-25 ft-lb would be still too high.
The first photo is of one that displays 0-75 in-lbs.
http://buy1.snapon.com/catalog/item.asp?...amp;dir=catalog
Lists at $280 though. This would pretty much only be useful for small bolts, but it would be plenty accurate. I remember snapping off an odd bolt on the valve cover of my Integra. It was this odd thing that had one end on the block and the other end sticking through the valve cover (through a gasket). The cap screw for the spark plug wire cover went on this. I tightened it once and snapped it off. The service manual said 8 ft-lbs. This one couldn't even handle that much torque.
he is talking about "screws", 0-25 ft-lb would be still too high.
The first photo is of one that displays 0-75 in-lbs.
http://buy1.snapon.com/catalog/item.asp?...amp;dir=catalog
Lists at $280 though. This would pretty much only be useful for small bolts, but it would be plenty accurate. I remember snapping off an odd bolt on the valve cover of my Integra. It was this odd thing that had one end on the block and the other end sticking through the valve cover (through a gasket). The cap screw for the spark plug wire cover went on this. I tightened it once and snapped it off. The service manual said 8 ft-lbs. This one couldn't even handle that much torque.
You 'll want to look at a torque screwdriver.
What Range?????
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