+ Wrench spanner wrench dual mm 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 24 27 30 32 34 36 38 40 41 46 wrenches common specifications mm 6 × 7 8 × 10 9 × 11 10 × 12 12 × 14 13 × 15 13 × 16 14 × 17 16 × 18 17 × 19 18 × 21 19 × 22 22 × 24 24 × 27 27 × 30 30 × 32 32 × 34 32 × 36 34 × 36 36 × 41 41 × 46 5.5 × 7 8 × 9 10 × 11 10 × 13 11 × 13 12 × 13 14 × 15 15 × 16 16 × 17 18 × 19 20 × 22 21 × 23 21 × 24 24 × 26 24 × 30 25 × 28 27 × 32 30 × 34 wrenches common specifications mm 5.5 × 7 8 × 10 9 × 11 10 × 12 12 × 14 13 × 15 13 × 16 14 × 17 16 × 18 17 × 19 18 × 21 19 × 22 22 × 24 24 × 27 27 × 30 30 × 32 32 × 34 32 × 36 34 × 36 36 × 41 6 × 7 8 × 9 10 × 11 10 × 13 11 × 13 12 × 13 14 × 15 15 × 16 16 × 17 18 × 19 20 × 22 21 × 23 21 × 24 24 × 26 25 × 28 27 × 32