Instruct: Classify a given review into positive or negative sentiment.
Query: Works very well

I've used this on dozens of deck screws and on several nasty, rusted old screws on my boat trailer, and now I'd never be without it. So far it's removed everything I've tried it with.I've seen several negative reviews here, and I can't help but wonder if they were running the drill the wrong direction. Either that, or they were using it on a screw or bolt that was rusted into a metal object to an extraordinary degree. I can imagine a screw rusted into some metal device that just isn't going to come out with this or anything else, no matter what. I've been fiddling with tools for 50 years, and I think this is the best damaged-screw removal tool possible -- not a magic bullet that'll do 100% of your problems, but probably 99%.It more than pays for itself the first time you use it.