im getting into bike wrenching again. i tried working on my skills 2 yrs ago but i damaged a carbon frame as I was trying to remove a really stuck bottom bracket. the tool slipped off nder the pressure, it wouldn't budge at all with the small leverage I had. I ended up gouging the seat stay as it slipped off. So I sold my tools after that happened, $400 frame ruined. What out there has lots of leverage, I don't want a repeat LOL.