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Leather Conversion Chart

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  • Standard Weight Designations

    Side Upper Leather

    • HHH
    • HH
    • H
    • HM
    • M
    • LM
    • L
    • LL
    • 5.5 to 6 oz.
    • 5 to 5.5 oz.
    • 4.5 to 5 oz.
    • 4 to 4.5 oz.
    • 3.5 to 4 oz.
    • 3 to 3.5 oz.
    • 2.5 to 3 oz.
    • 2 to 2.5 oz.

    For Plumps of any given weight, place the letter "P" in front of the weight and add one-fourth of an ounce. The above weight designations represent general practice in the Side Upper Leather Division of the U.S. tanning industry. Weights are gauged in the butt area, along the backbone and approximately six inches in.
    TANNERS COUNCIL OF AMERICA, INC.

  • Leather Thickness

    Conversion Chart

    • Ounces
    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • MM
    • 0.40
    • 0.80
    • 1.20
    • 1.60
    • 2.00
    • 2.40
    • 2.80
    • 3.20
    • 3.60
    • 4.00
    • 4.40
    • 4.80
    • Irons
    • 75
    • 1.50
    • 2.25
    • 3.00
    • 3.75
    • 4.50
    • 5.25
    • 6.00
    • 6.75
    • 7.50
    • 8.25
    • 9.00
    • FI
    • 1/64
    • 1/32
    • 3/64
    • 1/16
    • 5/64
    • 3/32
    • 7/64
    • 1/8
    • 9/64
    • 5/32
    • 11/64
    • 3/16
    • DI
    • .016
    • .031
    • .047
    • .063
    • .078
    • .094
    • .109
    • .125
    • .141
    • .156
    • .172
    • .188

    MM = Million Meters  FI = Fractional Inches  DI = Decimal Inches

Copyright 2008 Sole Survivor