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    Products number

    Metrical : 4 mm Outer- 2,5 mm Inner

    Metrical : 5 mm Outer - 3,5 mm Inner

    Metrical : 6 mm Outer - 4 mm Inner

    Metrical : 8 mm Outer - 6 mm Inner

    Metrical : 10 mm Outer - 7 mm Inner

    Metrical : 12 mm Outer - 9 mm Inner

    Metrical : 15 mm Outer - 11,5 mm Inner

    Imperial : 5/32" (3,96mm) Outer - 0,094" (2,38mm) Inner

    Imperial : 3/16" (4,76mm) Outer - 1/8" (3,17mm) Inner

    Imperial : 1/4" (6,35mm) Outer - 0,17" (4,31mm) Inner

    Imperial : 5/16" (7,93mm) Outer - 0,216" (5,48mm) Inner

    Imperial : 3/8" (9,52mm) Outer - 1/4" (6,35mm) Inner

    Imperial : 1/2" (12,7mm) Outer - 3/8" (9,52mm) Inner

      Products number