[baltic]

When lug nuts are too tight your rotars can warp. I've done that. Too loose and the lug nuts loosen. Not a happy prospect.
My car calls for 81 ft.lbs on each lug nut.
My wrench gives me half pound increments.
Most people don't require that.
If you need consisent accuracy, go on e-bay and take a look at some good wrenches. Many are sold as new. Thats how I got my Snap on at way below the regular price.
But they are still expensive, even at 25% off.