Features

Flexible shaft makes it easy to reach tight spaces to get fasteners started.  Perfect for those situations where you're trying to reach around a cabinet or enclosure and need to hold on to both ends of a fastener, and one of those spots is in a tight corner. 

Features a quick release chuck for rapid bit change, and securely holds 1/4" bits in place.  It can even hold shorter 1" insert bits, or can use it with a 1/4" to whatever size socket adapter.

You do lose some torque transmission from the flexible shaft, but when you need this tool hat's usually further down the list of problems.