[jcslocum]

A torque wrench is a measuring device, and measuring is usually important for most applications. A Harbor Fright hammer is fine but I would not use their torque wrenches. I'm a retired pro and have electronic snap on torque wrenches that get calibrated. They calibrate to +/- 1/2% so they are very accurate. I would not use a torque wrench on the water pump. If you have no feel for "tight" then use one, otherwise, use a small ratchet and save your money up for a good wrench. Tools are your freinds, buy good ones when you can.