Impact Wrench question?

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Originally Posted by thunderbolt

I agree that using an impact ot install lug nuts isn't the best way to do it, unless you use a torque wrench, but who is going to veriify the calibration of your torque wrench? These things do go out of cal fairly regularly...been using them on aircraft for years and all of them need to be calibrated yearly, if not more frequently.

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Everything in aviation gets a yearly recal at least, regardless if it's good or not. I agree they may go out of cal but for home automotive use I wouldn't worry about a little bit out. Now gauges are a different story. Doesn't take too much for the pointer to slip on the shaft, specially on tire gauges that get banged around. I've done the cal on many many hundreds.

Cheers

That's just the point though...without a regular schedule for calibration, who's to say when it goes out of cal enough to be an issue? 1 yr, 2 yrs, 5 yrs...Just backing off the setting and storing a torque wrench doesn't guarantee its good.

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Originally Posted by Fox

The bar length for lug nuts put in the vehicle from the factory is designed to give torque numbers very close to that of the factory specs when full weight is applied, very simple but very smart.

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Would that be "full weight" of a 300 pound man or "full weight" for a 120 pound woman? And I wonder what the difference in torque would be if each used the same length bar?

Update: used this impact driver to take the snows off my wife's jeep this morning. WOW what a great tool. I think I'm going to carry it in the truck with an inverter and extension cord. Now I'm glad I didn't buy an air gun. Money well spent.

The only one I see in my flyer is the 3.5 a for 69.99$
Is this a in store deal..Dutch

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Originally Posted by dutchhunter

The only one I see in my flyer is the 3.5 a for 69.99$
Is this a in store deal..Dutch

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it was in one of the early March flyers. 7.5 amp 240lbs torque.

Does anyone else use the old bar type torque wrenches or do you all count on the click style?. Used electric B&D impact for 15 years and learned to judge 50 ft/lbs pretty close. Now I am only doing my own tires I wouldn't be without an electric impact, when used properly...

It does lugs just fine

I have all the tools to do tires but I cant he bothered for the price my shop charges me. $3 a tire. I have them done when its in for an oil change.

Mine lasted 6 yrs with the business. I also got it on sale for $59.00 or so at the time.