Any suggestions for some decent spade bit extensions? I'm tired of the Irwin junk falling apart and breaking, I lost three of them inside a wall today. the set screw ones (Irwin) are tedious to assemble when you're crammed into a tiny dark attic, plus they won't accept the hex shanks. The sleeve lock type (Irwin) accept hex shanks, but they twist in half or come unhitched a lot.
Just looking for some good quality if anyone has used some they would recommend.

Thanks..................Brian