Thias":cl42q0d8 said:fasten your bb tool into a vice and use the frame for leverage.
It would be ideal to secure the tool in the bb with a longer screw and some large washers.
+1 and +1 on bolting the tool on.
Be amazed as to how much torque you can apply this way.
Lots of penetrating fluid though,and not just a spray and to task. Let it work in and spray it again a few times.
Theres an old trick of trying to tighten first before moving to untighten. Might break the bond and allow it to unscrew cleanly :?