High quality chrome vanadium steel sockets.
Some jobs on the Mini require an extra large socket such as the crank pulley or the hub nut:
1 1/2" - Swivel Pin/Ball Joints
1 1/8' - Drum Brake Hub Nut, Crank Pulley Bolt
1 5/16' - Disc Brake Hub Nut, Steering Wheel Boss, Flywheel Bolt