The reverse-out bits work very well. the secret is that you do often need to punch out a place to jam them in better for them to work best. They need a hole to grab into.
Do NOT punch out on this screw, it is way too small and in an amp plate. if the reverse bit doesn't grab, get a drill bit and take a LITTLE bit of material out of the center, keep in mind the size of screw your dealing with.....
using a punch is find on larger materials. However, i never use that approach, i always drill a little bit for the back out bit to have something to bite on to. Sears should have backout bits.
