The Britool BRIE117381B 12 piece set of open-ended spanners (metric) includes the following spanners:
6x7 - 8x9 - 10x11 - 12x13 - 14x15 - 16x17 - 18x19 - 21x23 - 22x24 - 26x28 - 27x29 - 30x32mm.
The open end spanners have an open end which is angled at 15° from the handle axis. They are forged in chrome vanadium surface with a high chrome finish.
ISO 691, ISO 1711-1, ISO 3318, ISO 10102, DIN 3110.