Oh wow!  I never knew of such a devise!!  What evil genius came up with that!?!?!!  I bet he was bald, pulled his hair out from scrapping parts with broken taps, then developed this!! Lol!!!  Can't grind/drill/pull it out just liquefy it!! Brilliant!!  Thanks for sharing Steve, and nice find. Now just remember you have it next time you break something

. Would be neat to see it used.