Turn screws at an angle when you can't access them head on. These T-handle key sets have a ball tip that engages the drive with less contact than a straight tip. They're handy for reaching screws in corners and underneath large machines, such as lathes and CNC mills. However, ball tips don't grip as tightly as straight tips and may strip threads if you crank them too hard. The highest-quality T-handle keys you can find, these are made of hardened steel to last a lifetime in your tool kit.

When you've only got one free hand to fasten, reach for these T-handle keys. A retaining ring on the ball tip grips screws securely so they won't fall off as you tighten. These sets are useful when working above crevices that screws could slip into. T-handle keys have a wide grip for maximum leverage and a long shaft for reaching into deep pockets.