seeking advice on cordless impact wrench

[Gelbster]

The main application for an Impact Wrench with a high torque capacity is to free rusted parts easily. It is a poor choice to tighten things .You will recall this only after you break/strip a few valuable items?
Do you need torque or impact and in what combo? The HF 'Earthquake" tool is excellent. For example the rear axle nuts - amazing. BUT 2 precautions:
Spray with Kroil for days before and make really sure you set the rotation in the correct direction !!
A relatively weak ,cordless impact wrench is useful for spinning on wheel nuts/bolts for example

[Gilles]

the main purpose of the impact wrench would be able to work faster, I already have torque wrenches for that purpose.