This set is suitable for dismantling brake calipers when replacing the brake pads. Supplied in a sturdy plastic storage case. Dr. bit sockets – 7 x 92, 7 x 65, 9 x 50, 11 x 100mm 2 x 3/8″ Sq. Dr. stubby bit sockets – 7 x 24, 8 x 24mm 2 x 1/2″ Sq.