Review on Irwin 88702 6 Extension Bit by David Pirlet

Worked well; However, I prefer expansion bits that have a fast connection. Adding/removing is much easier and faster because you don't need to take out the Allen key. Also, I must not have tightened the small screw very much because while drilling I loosened the screw and popped out, but luckily we found the screw and tightened it. Otherwise it makes a very robust and durable impression.