As with just about any BB tool, a ratchet/bar clamp and a small piece of wood can be used to hold the tool in place while cracking it loose, once loose remove and use regular ratchet or other wrench to get the cup out.
Originally Posted by
himespau
If memory serves there was once someone who made a tool that allowed you to lock your BBT-2 onto the bottom bracket while you tried to remove it. Do you happen to know what I'm talking about? I only ask because I just about outmuscled and stripped mine (in addition to banging the hell out of my knuckles) as it kept slipping out a couple weeks back.