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.