English - Metric

1/16" ≈ 1.5 mm

1/8" ≈ 3 mm

1/4" ≈ 6 mm

3/8" ≈ 9.5 mm

1/2" ≈ 13 mm

5/8" ≈ 16 mm

3/4" ≈ 19 mm

7/8" ≈ 22 mm

1" ≈ 25 mm

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