torque wrench.........

[spareparts]

I use a craftsman, they've been bought by Stanley. Lowes and Ace Hardware retail them now. Online price seems to be the best way to go. On small stuff, especially aluminum, I use a beam type, that way I know I'm approaching the intended torque. Sometimes it feels like its going to let go, if I don't feel good and its close. I stop. Clicker type works fine at higher inputs. You will probably need a torque angle gauge as well for new stuff with torque to yield bolts, remember to use new bolts every time on TTY.