Hi guys, I want to buy a battery ratchet gun and wondering what I should be looking for. I'd like to use it to: Undo wheel nuts Undo suspension bolts and other bolts on the car Might need it to undo driveshaft bolt and and crank bolt, flywheel bolts And also be able to do up these bolts but with enough finesse such that I do them up semi tight and then tighten with a torque wrench. I see that some (for similar cost) might have 200nm and others over 1,000nm (1/2"). What NM would I need for undoing driveshaft bolts and/or crank and flywheel bolts? Does the higher NM rating mean there is less finesse when doing up bolts? Or slower speed?