Yes: the acceleration rate of a torque wrench is almost zero, while that of an air wrench is substantial, and it's applied the same way a hammer-drill is, in bursts until the nut starts to turn. In a previous life as a motorcycle- and occasionally car-mechanic, the order was * start with a long wrench, * add penetrating oil overnight and repeat, * curse loudly and add heating nuts with a torch and cooling with water. * Failing that, buy some new nuts and cut the old ones off with the cutting torch and a cold-chisel. We never got to air wrenches. --dave On 11/3/23 03:07, William Park via talk wrote:
Hi (another very off topic),
Wheel bolts on my VW are seized pretty hard. Standing on 24in breaker bar doesn't help, and that's 300ft-lb torque. So, I'm thinking about getting an impact wrench. Those with greater than 300ft-lb are very expensive. I found one with 250ft-lb spec at my price range.
Question is, is there difference between static torque vs impact torque? In other words, will 250ft-lb impact wrench loosen 300ft-lb bolt?
Browsing YouTube, I learned that torque specs are always misleading and inflated. This means, I have to find 600ft-lb or greater, and that's serious money. --- Post to this mailing list talk@gtalug.org Unsubscribe from this mailing list https://gtalug.org/mailman/listinfo/talk