An 11 piece metric double ring spanner set from 6x7mm to 30x32mm with different bi-hexagonal openings at each end (12 point). All the heads are offset by 75degrees.
| Double ring spanners | 6x7, 8x9, 10x11, 12x13, 14x15, 16x17, 18x19, 20x22, 21x23, 24x27, 30x32mm |