IR 1/2" Impact wrenches, what is too much torque? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 10-28-2006, 05:19 PM
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IR 1/2" Impact wrenches, what is too much torque?

I have been looking at different impact wrenches online and find that Ingersoll-Rand makes everything from 280 to over 600 ft-lb models in 1/2" drive. How much torque is needed to handle anything automotive (not semis, ect.) and would twisting things off be a problem with the higher powered models? Any benefits or downfalls to having the 600 ft-lb model over say a 450 ft-lb one? I have a lower power model that does 280 or so & wasn't sure it was going to get the exhaust bolts on my car to break loose, took a good 5-10 sec before they came loose. I won't use this everyday but when I do it will be nice not to have to wonder if it will do the job.
Thanks, Steve

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Old 10-28-2006, 05:31 PM
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it's never too much power. I have a 750 Ft/ LBS 1" drive Dayton impact wrench, and a 1/2" drive 250 Ft/Lbs drive impact wrench. you can always turn big 1's down to lower settings, you can't turn small 1's up to higher settings
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Old 10-28-2006, 08:22 PM
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I have a matco MT1796 1000 ft lbs reverse torque. I have used this professionally at a truck dealership last summer and am very happy with it, its prob to expensive for your needs tho, check the knowledge base for the threads on what impact to get. I Think the ingersoll rand titanium gun is pretty reasonable price and got 1000 ft lbs reverse also.
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Old 11-06-2006, 05:10 PM
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impact

IR also makes one called the 2135ti , as advertised it has 1,000 ft/lbs of nut busting torque in reverse , i have one and highly recomend it, i worked on heavy equipment for a few year and bought one of these while working there, withen a few month all the other mechanics had bought their own,
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Old 11-07-2006, 06:30 PM
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The 2135TI is the model I am looking at saving for right now. Buddy brought his truck down the other night & we used my impact to remove the lugnuts to do the brakes, wouldn't budge them. Went to his place & got his MAC & this wouldn't do them either until we turned the pressure up to around 115 psi. I don't know what they were torqued at but it was a bunch, we had squirted lube in the studs before trying to loosen them. Looking at replacing all fittings on 3/8" hose & airtools with type V hi flo fittings & getting the 2135, hopefully this won't happen again. I got my impact as part of a 5 tool kit & figured I'd replace it someday but not this soon. If this gun holds up working on heavy equipment for a living, for what I do my grandkids will still be using it.
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Old 11-12-2006, 08:57 PM
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If you do get the 2135, just remember to lube the anvil/snout thing with a needle grease gun attachment every once in a while.
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Old 11-12-2006, 11:32 PM
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Get the on that is 1/2 with the highest torque you can afford. You can always turn down the air pressure and torque.
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