- Type of impact used (air, electric, cordless)
- Power (air pressure, air volume, length of hose, size of fittings, battery power, battery age)
- Impacts per second
- Size of internal hammers
- Possible use of additional adapters
- Socket size, weight, length
- Operator grip strength
- Weight of the impact
- Applied angle during use
Attempting to fully tighten hardware with the typical impact guns or torque sticks also prevents using a click-type torque wrench to confirm the specified amount of torque is present. While a click-type torque wrench can identify when the selected torque has been reached, it cannot diagnose excessive torque.
Under-tightening or over-tightening wheel-attaching hardware can also be damaging and dangerous.
Information provided by: ACDelco Auto & Equipment Tools