I agree with the above post. I have a bunch of snap on torque wrenches and think they are excellent. One wrench will not do it all. You need to decide how much or little torque you will be using it for and buy the correct wrench. For wheels, up to 125 ft lbs is fine. For little stuff, an inch pounds 3/8" drive wrench is desired. You can get some good deals on them on ebay.
Steve