Metal Perforation Patterns
Pattern Perfection From Hendrick
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.141" Diameter Round on .188" Centers.51%Open Area
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.141" Diameter Round on .219" Centers38%Open Area
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.141" Diameter Round on .250" Centers29%Open Area
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.141" Diameter Round on .325" Centers17%Open Area
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.141" Diameter Round on .379" Centers13%Open Area
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.141" Diameter Round on .433" Centers10%Open Area
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.156" Diameter Round on .188" Centers62%Open Area
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.156" Diameter Round on .219" Centers46%Open Area
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.156" Diameter Round on .250" Centers35%Open Area
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.156" Diameter Round on .313" Centers23%Open Area
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.156" Diameter Round on .325" Centers21%Open Area
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.156" Diameter Round on .375" Centers16%Open Area