Hacking drill - Problem with reverse thread

[Max]

So you've opened up the chuck like you were putting in a very large drill bit, you've then got a cross head screw driver and put the end into the chuck (where the drill bit would go) then feeling the screw head and turning it as if you were doing up a normal screw? They can be stiff but you should be able to undo it.

[Team Crusader]

Well given I've been putting so much force into it and they have still been slipping, I'm either wearing my screw drivers or the cross-head down, so its proving very difficult at the moment.