Six men have been convicted of conspiring to rob the Co-op bank in High Street, West Bromwich on 26 November 2011.
The court heard that three men overpowered two female members of staff as they opened up and then fled in a waiting car with £130,000.
Shakeel Rafiq, 31, West Bromwich and Ashley Douglas, 28, Ibrahim and Akim Lyazi both 19, and Jamal Mahmood, 23, all from London, pleaded guilty to conspiracy to steal.
However they were all found guilty of conspiracy to rob, along with Mohammed Masud, 30, West Bromwich.
A further three men, Gurminder Johal, 25, West Bromwich, Jaspal Rai, 20, Wednesbury and Afzal Khan, 29,Birmingham were cleared of both conspiracy to rob and a lesser charge of conspiracy to steal.
The men found guilty will be sentenced on a date still to be fixed.