If remaining bit is not showing to grip on guess this might work as it did for me in B&D one
A strong magnet to draw out broken bit. first remove camping screw or retract it.
hopefully youve already manage it
Bob uk
May 2020
Automatic Answer
While you wait for answers, we may have found some information which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix d.i.y tools.