Harbor Freight's Pittsburgh 1/2" click torque wrench $21.99, often as not in HF's frequent special sales for half that price, with protective hard plastic case. I keep one of these in my AS's tools. HF's wrench agrees with my shop's torque wrench, a pricey Proto. It also agrees with an old-school Craftsman beam torque wrench that came to me from my Dad's tools. You can pay more, a lot more, than the HF model wrench, but why? Whichever you do get, safeguard it, protect it like the sensitive measuring instrument it is.
http://t.harborfreight.com/1-2-half-...rench-239.html