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Leather thickness conversion guide


Inches

Ounces

Irons

Millimetres

1/6413/40.4
1/3220.8
3/6431.2
1/16431.6
5/6452.0
3/3262.4
7/6472.8
1/8863.2
9/6493.6
5/32104.0
11/64114.4
3/161294.8
13/64135.2
7/321410½5.6
16/641511¼6.0
1/416126.4
17/641712¾6.7
9/321813½7.1
19/641914¼7.6
5/1620158.0
21/642115¾8.4
11/322216½8.8
23/642317¼9.2
3/824189.6