I have a personal story about these.
I once installed two sconces on an exterior wall, about seven feet apart, and it seemed like a good place to try out my new 5-foot flexibit.
I didn't have the extension rod, but I thought if I got through four studs from one direction, I could drill through the last stud from the other side, then try to hook the end of a fish in the last cavity. I know, dumb idea.
But when I was done drilling, I fed in the fish -- and it went straight through all six studs! I'd hit a 1/4" bullseye at five feet while grappling that unwieldy, whipping contraption!
I was so proud of my new-found skill (translation: "cocky") that I went on to drill another hole for some speaker wire through just three first-floor ceiling joists. I swear, that son-of-a-gun made a right-angle turn somewhere and broke out right in the middle of the dining room ceiling.
Ya win some, ya lose some.
