I'll tell ya what my experience is as I just got mine today. All but #6 I got out without it, just using pb blaster, wd40, and patience. When it finally came in I wanted to test it out and couldn't even really get it on #6. If you haven't ordered it yet I wouldn't waste your time unless you got a really long attachment you could custom bend to what you wanted. If yours came with a really long attachment where if you could set the circular part on the table and the legs be standing upwards then it might help on most of them. I wouldn't buy it unless you're gonna be doing like brake or suspension work on crusty old vehicles with years of dirt and rust caked on them.