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. 

--dave

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