7 CFR § 51.2009 - Metric conversion table.

Inches	Millimeters (mm)
62/64	24.6
59/64	23.4
56/64	22.2
49/64	19.4
48/64	19.0
47/64	18.6
45/64	17.9
44/64	17.5
42/64	16.7
35/64	13.9
34/64	13.5