In the old days, we would say tighten it 1/2 turn before the bolt snaps. Today, everything has a torque reference for it. I would suggest that you consider looking on e Bay for a Snap On Torque wrench and get the click type, not the dial indicator. The reason that I like the Snap On unit is that if you have to have it re calibrated, you can always find a Snap On dealer. I have both a Snap On and a old Craftsman that came with a life time guarantee. The guarantee is no longer because Sears will not give any thing more than one year on torque wrenches now. One thing to remember with all click type torque wrenches, is to put it back to "0" before you put it away. Depending on the type of equipment that you are going to use it on, you will need either a 3/8 or 1/2 inch drive wrench. They aren't cheap, but it will last you a lifetime if you take care of your tools. For your use, if it isn't exactly correct, it will be close enough and all the bolts will be set to the same setting. Some might not agree, but the differance between 60 fp (foot pounds) and 65 fp isn't that far apart to create a problem for most applications... The Junkman