This is one of those tools that when you see it you wonder why someone didn’t think of it before. The Klein Adjustable-Length Screwdriver consists of a cushioned handle and reversible shaft with a #2 Phillips blade on one end and a 1/4-inch slotted blade on the other. The shaft fits inside the handle and is held in position by a quick-locking mechanism; push away from the handle on the knurled ring to retract and towards the handle to extend. The locking mechanism will grip anywhere along the shaft. Just set it to the length - from 4 to 8 inches - you need. Read more.