On Mon, 12 Jul 2010 12:33:02 -0700 (PDT), harry
wrote:

I find they usually break the stud/bolt off.....................Or if
it's in screwdriver mode chew the head up.

That would be a malfunction between the tool and operator.

It don't happen here...never has.

Tips:

1) Hold your mouth right
2) Bite tongue only as needed
3) Twist tool as needed
4) Get a hammer out